2018 Q1 Form 10-K Financial Statement
#000023055718000009 Filed on February 20, 2018
Income Statement
| Concept | 2018 Q1 | 2017 | 2016 Q4 |
|---|---|---|---|
| Revenue | $626.7M | $2.470B | $582.4M |
| YoY Change | 4.37% | 8.13% | 1834.23% |
| Cost Of Revenue | |||
| YoY Change | |||
| Gross Profit | |||
| YoY Change | |||
| Gross Profit Margin | |||
| Selling, General & Admin | $11.30M | $36.30M | |
| YoY Change | |||
| % of Gross Profit | |||
| Research & Development | |||
| YoY Change | |||
| % of Gross Profit | |||
| Depreciation & Amortization | $121.1M | $17.80M | $16.10M |
| YoY Change | 4.98% | 2.3% | 1.9% |
| % of Gross Profit | |||
| Operating Expenses | $600.6M | $2.184B | $526.2M |
| YoY Change | 14.01% | 6.97% | 10.59% |
| Operating Profit | |||
| YoY Change | |||
| Interest Expense | -$6.200M | -$24.40M | -$5.800M |
| YoY Change | 1.64% | 7.02% | -3.33% |
| % of Operating Profit | |||
| Other Income/Expense, Net | |||
| YoY Change | |||
| Pretax Income | $19.93M | $262.0M | $50.33M |
| YoY Change | -70.5% | 19.1% | -21.12% |
| Income Tax | $1.006M | $93.14M | $11.00M |
| % Of Pretax Income | 5.05% | 35.55% | 21.86% |
| Net Earnings | $18.93M | $168.8M | $39.36M |
| YoY Change | -62.48% | 6.52% | -13.28% |
| Net Earnings / Revenue | 3.02% | 6.84% | 6.76% |
| Basic Earnings Per Share | $0.32 | $2.89 | $0.68 |
| Diluted Earnings Per Share | $0.32 | $2.84 | $0.67 |
| COMMON SHARES | |||
| Basic Shares Outstanding | 58.72M shares | 58.46M shares | 57.86M shares |
| Diluted Shares Outstanding | 59.36M shares |
Balance Sheet
| Concept | 2018 Q1 | 2017 | 2016 Q4 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | |||
| YoY Change | |||
| Cash & Equivalents | $16.93M | $37.41M | |
| Short-Term Investments | |||
| Other Short-Term Assets | |||
| YoY Change | |||
| Inventory | |||
| Prepaid Expenses | |||
| Receivables | |||
| Other Receivables | |||
| Total Short-Term Assets | |||
| YoY Change | |||
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | $62.05M | $64.00M | $69.58M |
| YoY Change | -9.42% | -8.05% | 5.9% |
| Goodwill | $7.849M | $7.849M | |
| YoY Change | 0.0% | 0.0% | |
| Intangibles | |||
| YoY Change | |||
| Long-Term Investments | $5.679B | $5.685B | $5.365B |
| YoY Change | 3.99% | 5.97% | 5.42% |
| Other Assets | $64.50M | $32.00M | $84.80M |
| YoY Change | -10.66% | -62.26% | -8.52% |
| Total Long-Term Assets | |||
| YoY Change | |||
| TOTAL ASSETS | |||
| Total Short-Term Assets | |||
| Total Long-Term Assets | |||
| Total Assets | $7.660B | $7.686B | $7.356B |
| YoY Change | 3.46% | 4.49% | 6.54% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | |||
| YoY Change | |||
| Accrued Expenses | $90.50M | $131.9M | $132.9M |
| YoY Change | -6.02% | -0.75% | -20.56% |
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $55.00M | $0.00 | $0.00 |
| YoY Change | -100.0% | ||
| Long-Term Debt Due | |||
| YoY Change | |||
| Total Short-Term Liabilities | $145.5M | $131.9M | $132.9M |
| YoY Change | 34.85% | -0.75% | -23.93% |
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $439.2M | $439.1M | $438.7M |
| YoY Change | 0.09% | 0.09% | 13.01% |
| Other Long-Term Liabilities | $243.1M | $281.6M | $298.4M |
| YoY Change | -14.88% | -5.63% | 16.56% |
| Total Long-Term Liabilities | $682.3M | $720.7M | $737.1M |
| YoY Change | -5.81% | -2.22% | 14.42% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | $145.5M | $131.9M | $132.9M |
| Total Long-Term Liabilities | $682.3M | $720.7M | $737.1M |
| Total Liabilities | $6.000B | $5.974B | $5.824B |
| YoY Change | 3.25% | 2.56% | 5.78% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | $1.732B | $1.569B | |
| YoY Change | 7.58% | 8.48% | |
| Common Stock | $580.4M | $550.5M | |
| YoY Change | 3.97% | 4.19% | |
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | $584.2M | $572.1M | |
| YoY Change | 1.14% | 0.88% | |
| Treasury Stock Shares | 43.89M shares | 43.65M shares | |
| Shareholders Equity | $1.660B | $1.713B | $1.531B |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $7.660B | $7.686B | $7.356B |
| YoY Change | 3.46% | 4.49% | 6.54% |
Cashflow Statement
| Concept | 2018 Q1 | 2017 | 2016 Q4 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | $18.93M | $168.8M | $39.36M |
| YoY Change | -62.48% | 6.52% | -13.28% |
| Depreciation, Depletion And Amortization | $121.1M | $17.80M | $16.10M |
| YoY Change | 4.98% | 2.3% | 1.9% |
| Cash From Operating Activities | -$7.700M | $379.5M | $152.0M |
| YoY Change | -131.43% | 15.19% | 23.98% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$2.100M | -$14.10M | -$4.700M |
| YoY Change | -57.14% | -22.1% | 9.3% |
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | -$57.30M | -$318.6M | -$131.0M |
| YoY Change | 104.64% | 5.29% | 3.15% |
| Cash From Investing Activities | -$59.50M | -$332.7M | -$135.7M |
| YoY Change | 80.85% | 3.73% | 3.27% |
| FINANCING ACTIVITIES | |||
| Cash Dividend Paid | |||
| YoY Change | |||
| Common Stock Issuance & Retirement, Net | $6.116M | $6.015M | |
| YoY Change | 9.76% | 20.49% | |
| Debt Paid & Issued, Net | |||
| YoY Change | |||
| Cash From Financing Activities | 39.40M | -$39.58M | 7.800M |
| YoY Change | -379.43% | -348.94% | -244.44% |
| NET CHANGE | |||
| Cash From Operating Activities | -7.700M | $379.5M | 152.0M |
| Cash From Investing Activities | -59.50M | -$332.7M | -135.7M |
| Cash From Financing Activities | 39.40M | -$39.58M | 7.800M |
| Net Change In Cash | -27.80M | $7.000M | 24.10M |
| YoY Change | 23.56% | -72.0% | -269.72% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | -$7.700M | $379.5M | $152.0M |
| Capital Expenditures | -$2.100M | -$14.10M | -$4.700M |
| Free Cash Flow | -$5.600M | $393.6M | $156.7M |
| YoY Change | -119.05% | 13.25% | 23.48% |
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162000 | USD |
| CY2016 | sigi |
Other Investments Realized Gains
OtherInvestmentsRealizedGains
|
3000 | USD |
| CY2017 | sigi |
Other Investments Realized Gains
OtherInvestmentsRealizedGains
|
494000 | USD |
| CY2015 | sigi |
Other Investments Realized Losses
OtherInvestmentsRealizedLosses
|
653000 | USD |
| CY2016 | sigi |
Other Investments Realized Losses
OtherInvestmentsRealizedLosses
|
4000 | USD |
| CY2017 | sigi |
Other Investments Realized Losses
OtherInvestmentsRealizedLosses
|
859000 | USD |
| CY2017Q4 | sigi |
Percentage Common Stock Ownedby Related Party
PercentageCommonStockOwnedbyRelatedParty
|
0.128 | |
| CY2016Q4 | sigi |
Percentage Decline In Fair Value Percentage
PercentageDeclineInFairValuePercentage
|
0.01 | |
| CY2017Q4 | sigi |
Percentage Decline In Fair Value Percentage
PercentageDeclineInFairValuePercentage
|
0.01 | |
| CY2017 | sigi |
Percentage Of Unpaid Nfip Claims Ceded By Federal Government
PercentageOfUnpaidNfipClaimsCededByFederalGovernment
|
1.00 | |
| CY2017Q4 | sigi |
Provisional Increaseto Deferred Tax Asset
ProvisionalIncreasetoDeferredTaxAsset
|
7500000 | USD |
| CY2017Q4 | sigi |
Purchase Amount Of Annuities
PurchaseAmountOfAnnuities
|
18500000 | USD |
| CY2015 | sigi |
Related Party Transactions Contributions To Foundation
RelatedPartyTransactionsContributionsToFoundation
|
1000000 | USD |
| CY2016 | sigi |
Related Party Transactions Contributions To Foundation
RelatedPartyTransactionsContributionsToFoundation
|
0 | USD |
| CY2017 | sigi |
Related Party Transactions Contributions To Foundation
RelatedPartyTransactionsContributionsToFoundation
|
100000 | USD |
| CY2016Q4 | sigi |
Remaining Reinsurance Balances
RemainingReinsuranceBalances
|
767819000 | USD |
| CY2017Q4 | sigi |
Remaining Reinsurance Balances
RemainingReinsuranceBalances
|
748325000 | USD |
| CY2015 | sigi |
Short Term Investments Realized Gains
ShortTermInvestmentsRealizedGains
|
0 | USD |
| CY2016 | sigi |
Short Term Investments Realized Gains
ShortTermInvestmentsRealizedGains
|
0 | USD |
| CY2017 | sigi |
Short Term Investments Realized Gains
ShortTermInvestmentsRealizedGains
|
-2000 | USD |
| CY2015 | sigi |
Short Term Investments Realized Losses
ShortTermInvestmentsRealizedLosses
|
0 | USD |
| CY2016 | sigi |
Short Term Investments Realized Losses
ShortTermInvestmentsRealizedLosses
|
-13000 | USD |
| CY2017 | sigi |
Short Term Investments Realized Losses
ShortTermInvestmentsRealizedLosses
|
-6000 | USD |
| CY2016Q4 | sigi |
Statutory Accounting Practices Statutory Unassigned Surplus
StatutoryAccountingPracticesStatutoryUnassignedSurplus
|
1048200000 | USD |
| CY2017Q4 | sigi |
Statutory Accounting Practices Statutory Unassigned Surplus
StatutoryAccountingPracticesStatutoryUnassignedSurplus
|
1137300000 | USD |
| CY2017 | sigi |
Tax Benefiton Unrealized Gains
TaxBenefitonUnrealizedGains
|
5700000 | USD |
| CY2015Q4 | sigi |
Tax Benefits Related To Compensation Expense Deductions For Share Based Compensation Awards
TaxBenefitsRelatedToCompensationExpenseDeductionsForShareBasedCompensationAwards
|
22000000 | USD |
| CY2016Q4 | sigi |
Tax Benefits Related To Compensation Expense Deductions For Share Based Compensation Awards
TaxBenefitsRelatedToCompensationExpenseDeductionsForShareBasedCompensationAwards
|
23800000 | USD |
| CY2017Q4 | sigi |
Tax Benefits Related To Compensation Expense Deductions For Share Based Compensation Awards
TaxBenefitsRelatedToCompensationExpenseDeductionsForShareBasedCompensationAwards
|
23800000 | USD |
| CY2015 | sigi |
Tax Reform Deferred Tax Asset Impact
TaxReformDeferredTaxAssetImpact
|
0 | USD |
| CY2016 | sigi |
Tax Reform Deferred Tax Asset Impact
TaxReformDeferredTaxAssetImpact
|
0 | USD |
| CY2017 | sigi |
Tax Reform Deferred Tax Asset Impact
TaxReformDeferredTaxAssetImpact
|
20205000 | USD |
| CY2015 | sigi |
Taxoninvestmentincome
Taxoninvestmentincome
|
32090000 | USD |
| CY2016 | sigi |
Taxoninvestmentincome
Taxoninvestmentincome
|
30621000 | USD |
| CY2017 | sigi |
Taxoninvestmentincome
Taxoninvestmentincome
|
45588000 | USD |
| CY2017 | sigi |
Terrorism Risk Insurance Program Annual Cap
TerrorismRiskInsuranceProgramAnnualCap
|
100000000000 | USD |
| CY2017 | sigi |
Terrorism Risk Insurance Program Companys Estimated Deductible
TerrorismRiskInsuranceProgramCompanysEstimatedDeductible
|
323000000 | USD |
| CY2017 | sigi |
Terrorism Risk Insurance Program Federal Share Reduction
TerrorismRiskInsuranceProgramFederalShareReduction
|
0.01 | |
| CY2017Q4 | sigi |
Terrorism Risk Insurance Program Insurer Retainer
TerrorismRiskInsuranceProgramInsurerRetainer
|
0.18 | |
| CY2017 | sigi |
Terrorism Risk Insurance Program Reimbursed Percentage Maximum
TerrorismRiskInsuranceProgramReimbursedPercentageMaximum
|
0.82 | |
| CY2017Q4 | sigi |
Terrorism Risk Insurance Program Reimbursed Percentage Minimum
TerrorismRiskInsuranceProgramReimbursedPercentageMinimum
|
0.80 | |
| CY2015 | sigi |
Total Investment Income After Federal Income Tax
TotalInvestmentIncomeAfterFederalIncomeTax
|
102397000 | USD |
| CY2016 | sigi |
Total Investment Income After Federal Income Tax
TotalInvestmentIncomeAfterFederalIncomeTax
|
95196000 | USD |
| CY2017 | sigi |
Total Investment Income After Federal Income Tax
TotalInvestmentIncomeAfterFederalIncomeTax
|
122653000 | USD |
| CY2015 | sigi |
Total Investment Revenues
TotalInvestmentRevenues
|
134487000 | USD |
| CY2016 | sigi |
Total Investment Revenues
TotalInvestmentRevenues
|
125817000 | USD |
| CY2017 | sigi |
Total Investment Revenues
TotalInvestmentRevenues
|
168241000 | USD |
| CY2017Q4 | sigi |
Total Leases Due Current Year
TotalLeasesDueCurrentYear
|
12300000 | USD |
| CY2017Q4 | sigi |
Total Leases Due In Five Years
TotalLeasesDueInFiveYears
|
2100000 | USD |
| CY2017Q4 | sigi |
Total Leases Due In Four Years
TotalLeasesDueInFourYears
|
3700000 | USD |
| CY2017Q4 | sigi |
Total Leases Due In Three Years
TotalLeasesDueInThreeYears
|
6000000 | USD |
| CY2017Q4 | sigi |
Total Leases Due In Two Years
TotalLeasesDueInTwoYears
|
7600000 | USD |
| CY2017Q4 | sigi |
Total Leases Due Thereafter
TotalLeasesDueThereafter
|
2600000 | USD |
| CY2017Q4 | sigi |
Total Minimum Payment Required
TotalMinimumPaymentRequired
|
34300000 | USD |
| CY2015 | sigi |
Total Unrealized Gains Losses On Investment Securities Gross
TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross
|
-54460000 | USD |
| CY2016 | sigi |
Total Unrealized Gains Losses On Investment Securities Gross
TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross
|
-4420000 | USD |
| CY2017 | sigi |
Total Unrealized Gains Losses On Investment Securities Gross
TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross
|
59876000 | USD |
| CY2015 | sigi |
Total Unrealized Gains Losses On Investment Securities Tax
TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax
|
-19062000 | USD |
| CY2016 | sigi |
Total Unrealized Gains Losses On Investment Securities Tax
TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax
|
-1547000 | USD |
| CY2017 | sigi |
Total Unrealized Gains Losses On Investment Securities Tax
TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax
|
21423000 | USD |
| CY2015 | sigi |
Total Unrealized Gains Losseson Investment Securities
TotalUnrealizedGainsLossesonInvestmentSecurities
|
35398000 | USD |
| CY2016 | sigi |
Total Unrealized Gains Losseson Investment Securities
TotalUnrealizedGainsLossesonInvestmentSecurities
|
2873000 | USD |
| CY2017 | sigi |
Total Unrealized Gains Losseson Investment Securities
TotalUnrealizedGainsLossesonInvestmentSecurities
|
-38453000 | USD |
| CY2015Q4 | sigi |
Unrealized Gain Loss On Investment Securities
UnrealizedGainLossOnInvestmentSecurities
|
69224000 | USD |
| CY2016Q4 | sigi |
Unrealized Gain Loss On Investment Securities
UnrealizedGainLossOnInvestmentSecurities
|
64804000 | USD |
| CY2017Q4 | sigi |
Unrealized Gain Loss On Investment Securities
UnrealizedGainLossOnInvestmentSecurities
|
124679000 | USD |
| CY2016Q4 | sigi |
Unrealized Unrecognized Loss
UnrealizedUnrecognizedLoss
|
0 | USD |
| CY2017Q4 | sigi |
Unrealized Unrecognized Loss
UnrealizedUnrecognizedLoss
|
100000 | USD |
| CY2016Q4 | us-gaap |
Accrued Investment Income Receivable
AccruedInvestmentIncomeReceivable
|
40164000 | USD |
| CY2017Q4 | us-gaap |
Accrued Investment Income Receivable
AccruedInvestmentIncomeReceivable
|
40897000 | USD |
| CY2016Q4 | us-gaap |
Accrued Salaries Current And Noncurrent
AccruedSalariesCurrentAndNoncurrent
|
132880000 | USD |
| CY2017Q4 | us-gaap |
Accrued Salaries Current And Noncurrent
AccruedSalariesCurrentAndNoncurrent
|
131850000 | USD |
| CY2016Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
198729000 | USD |
| CY2017Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
213227000 | USD |
| CY2016Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-15950000 | USD |
| CY2017Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
20170000 | USD |
| CY2016Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
347295000 | USD |
| CY2017Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
367717000 | USD |
| CY2015 | us-gaap |
Adjustments Related To Tax Withholding For Share Based Compensation
AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
|
0 | USD |
| CY2016 | us-gaap |
Adjustments Related To Tax Withholding For Share Based Compensation
AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
|
0 | USD |
| CY2017 | us-gaap |
Adjustments Related To Tax Withholding For Share Based Compensation
AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
|
-4281000 | USD |
| CY2017 | us-gaap |
Adjustments Related To Tax Withholding For Share Based Compensation
AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
|
-4300000 | USD |
| CY2015 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
23800000 | USD |
| CY2016 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
30300000 | USD |
| CY2017 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
31200000 | USD |
| CY2015 | us-gaap |
Allocated Share Based Compensation Expense Net Of Tax
AllocatedShareBasedCompensationExpenseNetOfTax
|
15800000 | USD |
| CY2016 | us-gaap |
Allocated Share Based Compensation Expense Net Of Tax
AllocatedShareBasedCompensationExpenseNetOfTax
|
20000000 | USD |
| CY2017 | us-gaap |
Allocated Share Based Compensation Expense Net Of Tax
AllocatedShareBasedCompensationExpenseNetOfTax
|
16200000 | USD |
| CY2016Q4 | us-gaap |
Assets
Assets
|
7355848000 | USD |
| CY2017Q4 | us-gaap |
Assets
Assets
|
7686431000 | USD |
| CY2017Q4 | us-gaap |
Assets Held By Insurance Regulators
AssetsHeldByInsuranceRegulators
|
25700000 | USD |
| CY2015 | us-gaap |
Assumed Premiums Earned
AssumedPremiumsEarned
|
23209000 | USD |
| CY2016 | us-gaap |
Assumed Premiums Earned
AssumedPremiumsEarned
|
28214000 | USD |
| CY2017 | us-gaap |
Assumed Premiums Earned
AssumedPremiumsEarned
|
25831000 | USD |
| CY2015 | us-gaap |
Assumed Premiums Written
AssumedPremiumsWritten
|
23848000 | USD |
| CY2016 | us-gaap |
Assumed Premiums Written
AssumedPremiumsWritten
|
28779000 | USD |
| CY2017 | us-gaap |
Assumed Premiums Written
AssumedPremiumsWritten
|
26685000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
4753759000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
5076716000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Equity Securities Amortized Cost Basis
AvailableForSaleEquitySecuritiesAmortizedCostBasis
|
120889000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Equity Securities Amortized Cost Basis
AvailableForSaleEquitySecuritiesAmortizedCostBasis
|
143811000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities
AvailableForSaleSecurities
|
4939293000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities
AvailableForSaleSecurities
|
5345227000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
80702000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
130058000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
16057000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
5358000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Amortized Cost
AvailableForSaleSecuritiesAmortizedCost
|
4874648000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Amortized Cost
AvailableForSaleSecuritiesAmortizedCost
|
5220527000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
|
406000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
|
397000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
|
16057000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
|
5358000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
|
1373737000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
|
913812000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
15651000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
4961000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
|
1358111000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
|
878126000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
|
15626000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
|
35686000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
|
2510294000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
|
2099529000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
|
236842000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
|
315857000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
4792540000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
5162522000 | USD |
| CY2016Q4 | us-gaap |
Available For Sale Securities Equity Securities
AvailableForSaleSecuritiesEquitySecurities
|
146753000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Equity Securities
AvailableForSaleSecuritiesEquitySecurities
|
182705000 | USD |
| CY2015 | us-gaap |
Benefits Losses And Expenses
BenefitsLossesAndExpenses
|
1899160000 | USD |
| CY2016 | us-gaap |
Benefits Losses And Expenses
BenefitsLossesAndExpenses
|
2064315000 | USD |
| CY2017 | us-gaap |
Benefits Losses And Expenses
BenefitsLossesAndExpenses
|
2208016000 | USD |
| CY2015 | us-gaap |
Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
|
6760000 | USD |
| CY2016 | us-gaap |
Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
|
3151000 | USD |
| CY2017 | us-gaap |
Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
|
278000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due
CapitalLeasesFutureMinimumPaymentsDue
|
2400000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due Thereafter
CapitalLeasesFutureMinimumPaymentsDueThereafter
|
0 | USD |
| CY2014Q4 | us-gaap |
Cash
Cash
|
23959000 | USD |
| CY2015Q4 | us-gaap |
Cash
Cash
|
898000 | USD |
| CY2016Q4 | us-gaap |
Cash
Cash
|
458000 | USD |
| CY2017Q4 | us-gaap |
Cash
Cash
|
534000 | USD |
| CY2017 | us-gaap |
Ceded Premiums Earned
CededPremiumsEarned
|
382292000 | USD |
| CY2015 | us-gaap |
Ceded Premiums Written
CededPremiumsWritten
|
357463000 | USD |
| CY2016 | us-gaap |
Ceded Premiums Written
CededPremiumsWritten
|
368750000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due Current
CapitalLeasesFutureMinimumPaymentsDueCurrent
|
2300000 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Five Years
CapitalLeasesFutureMinimumPaymentsDueInFiveYears
|
0 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Four Years
CapitalLeasesFutureMinimumPaymentsDueInFourYears
|
0 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Three Years
CapitalLeasesFutureMinimumPaymentsDueInThreeYears
|
0 | USD |
| CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Two Years
CapitalLeasesFutureMinimumPaymentsDueInTwoYears
|
100000 | USD |
| CY2015 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-23061000 | USD |
| CY2016 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-440000 | USD |
| CY2017 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
76000 | USD |
| CY2016 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
25000000 | USD |
| CY2017 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
7000000 | USD |
| CY2017 | us-gaap |
Cash Dividends Paid To Parent Company
CashDividendsPaidToParentCompany
|
80100000 | USD |
| CY2015 | us-gaap |
Ceded Premiums Earned
CededPremiumsEarned
|
363567000 | USD |
| CY2016 | us-gaap |
Ceded Premiums Earned
CededPremiumsEarned
|
363357000 | USD |
| CY2017 | us-gaap |
Ceded Premiums Written
CededPremiumsWritten
|
389503000 | USD |
| CY2016Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2017Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2015 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.57 | |
| CY2016 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.61 | |
| CY2017 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.66 | |
| CY2016Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
2 | |
| CY2017Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
2 | |
| CY2016Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
360000000 | shares |
| CY2017Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
360000000 | shares |
| CY2016Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
101620436 | shares |
| CY2017Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
102284564 | shares |
| CY2016Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
203241000 | USD |
| CY2017Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
204569000 | USD |
| CY2015 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
136648000 | USD |
| CY2016 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
151970000 | USD |
| CY2017 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
204946000 | USD |
| CY2015 | us-gaap |
Conversion Of Stock Amount Converted1
ConversionOfStockAmountConverted1
|
4239000 | USD |
| CY2016 | us-gaap |
Conversion Of Stock Amount Converted1
ConversionOfStockAmountConverted1
|
3263000 | USD |
| CY2017 | us-gaap |
Conversion Of Stock Amount Converted1
ConversionOfStockAmountConverted1
|
4725000 | USD |
| CY2016 | us-gaap |
Costs And Expenses Related Party
CostsAndExpensesRelatedParty
|
400000 | USD |
| CY2017 | us-gaap |
Costs And Expenses Related Party
CostsAndExpensesRelatedParty
|
2000000 | USD |
| CY2015 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
45347000 | USD |
| CY2016 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
48581000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
5784000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
|
17881000 | USD |
| CY2017 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
62184000 | USD |
| CY2015 | us-gaap |
Deferred Compensation Arrangement With Individual Contributions By Employer
DeferredCompensationArrangementWithIndividualContributionsByEmployer
|
200000 | USD |
| CY2016 | us-gaap |
Deferred Compensation Arrangement With Individual Contributions By Employer
DeferredCompensationArrangementWithIndividualContributionsByEmployer
|
300000 | USD |
| CY2017 | us-gaap |
Deferred Compensation Arrangement With Individual Contributions By Employer
DeferredCompensationArrangementWithIndividualContributionsByEmployer
|
200000 | USD |
| CY2015 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
21484000 | USD |
| CY2016 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
12879000 | USD |
| CY2017 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
30958000 | USD |
| CY2015 | us-gaap |
Deferred Policy Acquisition Cost Amortization Expense
DeferredPolicyAcquisitionCostAmortizationExpense
|
399436000 | USD |
| CY2016 | us-gaap |
Deferred Policy Acquisition Cost Amortization Expense
DeferredPolicyAcquisitionCostAmortizationExpense
|
450328000 | USD |
| CY2017 | us-gaap |
Deferred Policy Acquisition Cost Amortization Expense
DeferredPolicyAcquisitionCostAmortizationExpense
|
469236000 | USD |
| CY2016Q4 | us-gaap |
Deferred Policy Acquisition Costs
DeferredPolicyAcquisitionCosts
|
222564000 | USD |
| CY2017Q4 | us-gaap |
Deferred Policy Acquisition Costs
DeferredPolicyAcquisitionCosts
|
235055000 | USD |
| CY2015 | us-gaap |
Deferred Policy Acquisition Costs Period Increase Decrease
DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease
|
-27551000 | USD |
| CY2016 | us-gaap |
Deferred Policy Acquisition Costs Period Increase Decrease
DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease
|
-9405000 | USD |
| CY2017 | us-gaap |
Deferred Policy Acquisition Costs Period Increase Decrease
DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease
|
-12491000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
196971000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
116747000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Investments
DeferredTaxAssetsInvestments
|
1484000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Investments
DeferredTaxAssetsInvestments
|
0 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
84840000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
31990000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
771000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
54000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
8344000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
|
8606000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
17750000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
12221000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves
|
70065000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves
|
38771000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve
|
78201000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve
|
50267000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
112131000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
84757000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost
DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost
|
75310000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost
DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost
|
47484000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
0 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
2500000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
14140000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
8590000 | USD |
| CY2017 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate
|
0.0346 | |
| CY2017 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
|
0.0636 | |
| CY2016Q4 | us-gaap |
Defined Benefit Plan Weighted Average Asset Allocations
DefinedBenefitPlanWeightedAverageAssetAllocations
|
1.00 | |
| CY2017Q4 | us-gaap |
Defined Benefit Plan Weighted Average Asset Allocations
DefinedBenefitPlanWeightedAverageAssetAllocations
|
1.00 | |
| CY2015 | us-gaap |
Depreciation
Depreciation
|
16400000 | USD |
| CY2016 | us-gaap |
Depreciation
Depreciation
|
17400000 | USD |
| CY2017 | us-gaap |
Depreciation
Depreciation
|
17800000 | USD |
| CY2015 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
59688000 | USD |
| CY2016 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
61671000 | USD |
| CY2017 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
52100000 | USD |
| CY2015 | us-gaap |
Direct Premiums Earned
DirectPremiumsEarned
|
2330267000 | USD |
| CY2016 | us-gaap |
Direct Premiums Earned
DirectPremiumsEarned
|
2484715000 | USD |
| CY2017 | us-gaap |
Direct Premiums Earned
DirectPremiumsEarned
|
2647488000 | USD |
| CY2015 | us-gaap |
Direct Premiums Written
DirectPremiumsWritten
|
2403519000 | USD |
| CY2016 | us-gaap |
Direct Premiums Written
DirectPremiumsWritten
|
2577259000 | USD |
| CY2017 | us-gaap |
Direct Premiums Written
DirectPremiumsWritten
|
2733459000 | USD |
| CY2016Q4 | us-gaap |
Due To Related Parties Current
DueToRelatedPartiesCurrent
|
700000 | USD |
| CY2017Q4 | us-gaap |
Due To Related Parties Current
DueToRelatedPartiesCurrent
|
600000 | USD |
| CY2016Q4 | us-gaap |
Due To Related Parties Current And Noncurrent
DueToRelatedPartiesCurrentAndNoncurrent
|
400000 | USD |
| CY2017Q4 | us-gaap |
Due To Related Parties Current And Noncurrent
DueToRelatedPartiesCurrentAndNoncurrent
|
500000 | USD |
| CY2015 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.90 | |
| CY2016Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.64 | |
| CY2016Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.75 | |
| CY2016Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.66 | |
| CY2016Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.68 | |
| CY2016 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.74 | |
| CY2017Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.87 | |
| CY2017Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.71 | |
| CY2017Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.80 | |
| CY2017Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.52 | |
| CY2017 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.89 | |
| CY2015 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.85 | |
| CY2016Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.63 | |
| CY2016 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
1819000 | USD |
| CY2017 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
0 | USD |
| CY2016Q3 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
3688000 | USD |
| CY2016Q4 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
-7686000 | USD |
| CY2016 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
3562000 | USD |
| CY2017Q1 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
-1045000 | USD |
| CY2017Q2 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
1734000 | USD |
| CY2017Q3 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
6798000 | USD |
| CY2016Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.74 | |
| CY2016Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.66 | |
| CY2016Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.67 | |
| CY2016 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.70 | |
| CY2017Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.85 | |
| CY2017Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.70 | |
| CY2017Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.79 | |
| CY2017Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.51 | |
| CY2017 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.84 | |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
-8000000 | USD |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
-10300000 | USD |
| CY2017 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
-15000000 | USD |
| CY2016 | us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
3000000 | USD |
| CY2017 | us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
2000000 | USD |
| CY2015 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
1736000 | USD |
| CY2016Q4 | us-gaap |
Federal Home Loan Bank Advances
FederalHomeLoanBankAdvances
|
45000000 | USD |
| CY2015 | us-gaap |
Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
|
0 | USD |
| CY2016 | us-gaap |
Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
|
0 | USD |
| CY2017 | us-gaap |
Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
|
-998000 | USD |
| CY2015 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
31537000 | USD |
| CY2016Q1 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
-2704000 | USD |
| CY2016Q2 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
1765000 | USD |
| CY2017Q4 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
-1128000 | USD |
| CY2017 | us-gaap |
Gain Loss On Sale Of Securities Net
GainLossOnSaleOfSecuritiesNet
|
11204000 | USD |
| CY2016Q4 | us-gaap |
Goodwill
Goodwill
|
7849000 | USD |
| CY2017Q4 | us-gaap |
Goodwill
Goodwill
|
7849000 | USD |
| CY2016Q4 | us-gaap |
Held To Maturity Securities
HeldToMaturitySecurities
|
101556000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities
HeldToMaturitySecurities
|
42129000 | USD |
| CY2016Q4 | us-gaap |
Held To Maturity Securities Accumulated Unrecognized Holding Gain
HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
|
3813000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Accumulated Unrecognized Holding Gain
HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
|
2026000 | USD |
| CY2016Q4 | us-gaap |
Held To Maturity Securities Accumulated Unrecognized Holding Loss
HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
|
158000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Accumulated Unrecognized Holding Loss
HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
|
55000 | USD |
| CY2016Q4 | us-gaap |
Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment
HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment
|
101397000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment
HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment
|
42150000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value
HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
|
8697000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount
|
8097000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value
HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
|
24235000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount
|
23035000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After Ten Years Fair Value
HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue
|
0 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount
|
0 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Debt Maturities Within One Year Fair Value
HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue
|
11168000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount
|
10997000 | USD |
| CY2016Q4 | us-gaap |
Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
|
105211000 | USD |
| CY2017Q4 | us-gaap |
Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
|
44100000 | USD |
| CY2015 | us-gaap |
Impairment Of Investments
ImpairmentOfInvestments
|
18366000 | USD |
| CY2016 | us-gaap |
Impairment Of Investments
ImpairmentOfInvestments
|
8509000 | USD |
| CY2017 | us-gaap |
Impairment Of Investments
ImpairmentOfInvestments
|
4809000 | USD |
| CY2015 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
232692000 | USD |
| CY2016Q1 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
51875000 | USD |
| CY2016Q2 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
62311000 | USD |
| CY2016Q3 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
55443000 | USD |
| CY2016Q4 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
50326000 | USD |
| CY2016 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
219955000 | USD |
| CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
67574000 | USD |
| CY2017Q2 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
58929000 | USD |
| CY2017Q3 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
67315000 | USD |
| CY2017Q4 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
68150000 | USD |
| CY2017 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
261968000 | USD |
| CY2015 | us-gaap |
Income Loss From Equity Method Investments Net Of Dividends Or Distributions
IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions
|
-1889000 | USD |
| CY2016 | us-gaap |
Income Loss From Equity Method Investments Net Of Dividends Or Distributions
IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions
|
2316000 | USD |
| CY2017 | us-gaap |
Income Loss From Equity Method Investments Net Of Dividends Or Distributions
IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions
|
6393000 | USD |
| CY2015 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
66831000 | USD |
| CY2016 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
61460000 | USD |
| CY2017 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
93142000 | USD |
| CY2016Q4 | us-gaap |
Income Tax Receivable
IncomeTaxReceivable
|
2486000 | USD |
| CY2017Q4 | us-gaap |
Income Tax Receivable
IncomeTaxReceivable
|
3243000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Deductions Dividends
IncomeTaxReconciliationDeductionsDividends
|
1817000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Deductions Dividends
IncomeTaxReconciliationDeductionsDividends
|
1114000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Deductions Dividends
IncomeTaxReconciliationDeductionsDividends
|
1961000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
81442000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
76984000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
91689000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
370000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-2284000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-1000000 | USD |
| CY2015 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
39500000 | USD |
| CY2016 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
46405000 | USD |
| CY2017 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
62000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
11392000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
-46536000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
-5714000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Income Taxes
IncreaseDecreaseInIncomeTaxes
|
25004000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Income Taxes
IncreaseDecreaseInIncomeTaxes
|
11150000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Income Taxes
IncreaseDecreaseInIncomeTaxes
|
30918000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Interest And Dividends Receivable
IncreaseDecreaseInInterestAndDividendsReceivable
|
-407000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Interest And Dividends Receivable
IncreaseDecreaseInInterestAndDividendsReceivable
|
1473000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Interest And Dividends Receivable
IncreaseDecreaseInInterestAndDividendsReceivable
|
1088000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve
IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve
|
60800000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve
IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve
|
113800000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve
IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve
|
104900000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
11523000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
30071000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
9872000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
77564000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
9191000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
27297000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Premiums Receivable
IncreaseDecreaseInPremiumsReceivable
|
56386000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Premiums Receivable
IncreaseDecreaseInPremiumsReceivable
|
66447000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Premiums Receivable
IncreaseDecreaseInPremiumsReceivable
|
65418000 | USD |
| CY2015 | us-gaap |
Incurred Claims Property Casualty And Liability
IncurredClaimsPropertyCasualtyAndLiability
|
1148541000 | USD |
| CY2016 | us-gaap |
Incurred Claims Property Casualty And Liability
IncurredClaimsPropertyCasualtyAndLiability
|
1234797000 | USD |
| CY2017 | us-gaap |
Incurred Claims Property Casualty And Liability
IncurredClaimsPropertyCasualtyAndLiability
|
1345074000 | USD |
| CY2015 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
22428000 | USD |
| CY2016 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
22771000 | USD |
| CY2017 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
24354000 | USD |
| CY2015 | us-gaap |
Interest Paid
InterestPaid
|
21892000 | USD |
| CY2016 | us-gaap |
Interest Paid
InterestPaid
|
22098000 | USD |
| CY2017 | us-gaap |
Interest Paid
InterestPaid
|
23905000 | USD |
| CY2016Q4 | us-gaap |
Investments
Investments
|
5364947000 | USD |
| CY2017Q4 | us-gaap |
Investments
Investments
|
5685179000 | USD |
| CY2017Q4 | us-gaap |
Investments Net Asset Value
InvestmentsNetAssetValue
|
23700000 | USD |
| CY2015 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
11700000 | USD |
| CY2016 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
12300000 | USD |
| CY2017 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
10800000 | USD |
| CY2016Q4 | us-gaap |
Liabilities
Liabilities
|
5824478000 | USD |
| CY2017Q4 | us-gaap |
Liabilities
Liabilities
|
5973474000 | USD |
| CY2016Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
7355848000 | USD |
| CY2017Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
7686431000 | USD |
| CY2014Q4 | us-gaap |
Liability For Asbestos And Environmental Claims Gross
LiabilityForAsbestosAndEnvironmentalClaimsGross
|
30653000 | USD |
| CY2015Q4 | us-gaap |
Liability For Asbestos And Environmental Claims Gross
LiabilityForAsbestosAndEnvironmentalClaimsGross
|
30411000 | USD |
| CY2016Q4 | us-gaap |
Liability For Asbestos And Environmental Claims Gross
LiabilityForAsbestosAndEnvironmentalClaimsGross
|
29962000 | USD |
| CY2017Q4 | us-gaap |
Liability For Asbestos And Environmental Claims Gross
LiabilityForAsbestosAndEnvironmentalClaimsGross
|
28415000 | USD |
| CY2017Q4 | us-gaap |
Liability For Asbestos And Environmental Claims Gross
LiabilityForAsbestosAndEnvironmentalClaimsGross
|
28400000 | USD |
| CY2015 | us-gaap |
Liability For Asbestos And Environmental Claims Gross Incurred Loss1
LiabilityForAsbestosAndEnvironmentalClaimsGrossIncurredLoss1
|
2968000 | USD |
| CY2016 | us-gaap |
Liability For Asbestos And Environmental Claims Gross Incurred Loss1
LiabilityForAsbestosAndEnvironmentalClaimsGrossIncurredLoss1
|
1483000 | USD |
| CY2017 | us-gaap |
Liability For Asbestos And Environmental Claims Gross Incurred Loss1
LiabilityForAsbestosAndEnvironmentalClaimsGrossIncurredLoss1
|
126000 | USD |
| CY2015 | us-gaap |
Liability For Asbestos And Environmental Claims Gross Payment For Claims
LiabilityForAsbestosAndEnvironmentalClaimsGrossPaymentForClaims
|
3210000 | USD |
| CY2014Q4 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Net
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
|
2905892000 | USD |
| CY2015Q4 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Net
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
|
2966709000 | USD |
| CY2016Q4 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Net
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
|
3080519000 | USD |
| CY2017Q4 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Net
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
|
3185385000 | USD |
| CY2016 | us-gaap |
Liability For Asbestos And Environmental Claims Gross Payment For Claims
LiabilityForAsbestosAndEnvironmentalClaimsGrossPaymentForClaims
|
1932000 | USD |
| CY2017 | us-gaap |
Liability For Asbestos And Environmental Claims Gross Payment For Claims
LiabilityForAsbestosAndEnvironmentalClaimsGrossPaymentForClaims
|
1673000 | USD |
| CY2014Q4 | us-gaap |
Liability For Asbestos And Environmental Claims Net
LiabilityForAsbestosAndEnvironmentalClaimsNet
|
22994000 | USD |
| CY2015Q4 | us-gaap |
Liability For Asbestos And Environmental Claims Net
LiabilityForAsbestosAndEnvironmentalClaimsNet
|
23161000 | USD |
| CY2016Q4 | us-gaap |
Liability For Asbestos And Environmental Claims Net
LiabilityForAsbestosAndEnvironmentalClaimsNet
|
22716000 | USD |
| CY2017Q4 | us-gaap |
Liability For Asbestos And Environmental Claims Net
LiabilityForAsbestosAndEnvironmentalClaimsNet
|
21212000 | USD |
| CY2017Q4 | us-gaap |
Liability For Asbestos And Environmental Claims Net
LiabilityForAsbestosAndEnvironmentalClaimsNet
|
21200000 | USD |
| CY2015 | us-gaap |
Liability For Asbestos And Environmental Claims Net Incurred Loss1
LiabilityForAsbestosAndEnvironmentalClaimsNetIncurredLoss1
|
-3320000 | USD |
| CY2016 | us-gaap |
Liability For Asbestos And Environmental Claims Net Incurred Loss1
LiabilityForAsbestosAndEnvironmentalClaimsNetIncurredLoss1
|
-1380000 | USD |
| CY2017 | us-gaap |
Liability For Asbestos And Environmental Claims Net Incurred Loss1
LiabilityForAsbestosAndEnvironmentalClaimsNetIncurredLoss1
|
0 | USD |
| CY2015 | us-gaap |
Liability For Asbestos And Environmental Claims Net Payment For Claims
LiabilityForAsbestosAndEnvironmentalClaimsNetPaymentForClaims
|
3153000 | USD |
| CY2016 | us-gaap |
Liability For Asbestos And Environmental Claims Net Payment For Claims
LiabilityForAsbestosAndEnvironmentalClaimsNetPaymentForClaims
|
1825000 | USD |
| CY2017 | us-gaap |
Liability For Asbestos And Environmental Claims Net Payment For Claims
LiabilityForAsbestosAndEnvironmentalClaimsNetPaymentForClaims
|
1504000 | USD |
| CY2014Q4 | us-gaap |
Liability For Claims And Claims Adjustment Expense
LiabilityForClaimsAndClaimsAdjustmentExpense
|
3477870000 | USD |
| CY2015Q4 | us-gaap |
Liability For Claims And Claims Adjustment Expense
LiabilityForClaimsAndClaimsAdjustmentExpense
|
3517728000 | USD |
| CY2016Q4 | us-gaap |
Liability For Claims And Claims Adjustment Expense
LiabilityForClaimsAndClaimsAdjustmentExpense
|
3691719000 | USD |
| CY2017Q4 | us-gaap |
Liability For Claims And Claims Adjustment Expense
LiabilityForClaimsAndClaimsAdjustmentExpense
|
3771240000 | USD |
| CY2016Q4 | us-gaap |
Liability For Claims And Claims Adjustment Expense Property Casualty Liability
LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability
|
3691719000 | USD |
| CY2017Q4 | us-gaap |
Liability For Claims And Claims Adjustment Expense Property Casualty Liability
LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability
|
3771240000 | USD |
| CY2015 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1
|
446550000 | USD |
| CY2016 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1
|
450811000 | USD |
| CY2017 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1
|
497486000 | USD |
| CY2015 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1
|
641174000 | USD |
| CY2016 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1
|
670176000 | USD |
| CY2017 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1
|
742722000 | USD |
| CY2015 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1
|
1148541000 | USD |
| CY2016 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1
|
1234797000 | USD |
| CY2017 | us-gaap |
Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1
LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1
|
1345074000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
438667000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
439116000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
-13098000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
15878000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
-39582000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
-391543000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
-318101000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
-331075000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
381580000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
301783000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
370733000 | USD |
| CY2015 | us-gaap |
Net Income Loss
NetIncomeLoss
|
165861000 | USD |
| CY2016Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
37032000 | USD |
| CY2016Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
43601000 | USD |
| CY2017Q2 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
41430000 | USD |
| CY2017Q3 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
40446000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
10000000 | USD |
| CY2017Q4 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
42587000 | USD |
| CY2017 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
161882000 | USD |
| CY2016Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
38502000 | USD |
| CY2016Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
39360000 | USD |
| CY2016 | us-gaap |
Net Income Loss
NetIncomeLoss
|
158495000 | USD |
| CY2017Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
50440000 | USD |
| CY2017Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
41426000 | USD |
| CY2017Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
46718000 | USD |
| CY2017Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
30242000 | USD |
| CY2017 | us-gaap |
Net Income Loss
NetIncomeLoss
|
168826000 | USD |
| CY2015 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
121316000 | USD |
| CY2016Q1 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
30769000 | USD |
| CY2016Q2 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
31182000 | USD |
| CY2016Q3 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
33375000 | USD |
| CY2016Q4 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
35428000 | USD |
| CY2016 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
130754000 | USD |
| CY2017Q1 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
37419000 | USD |
| CY2017 | us-gaap |
New Accounting Pronouncement Or Change In Accounting Principle Effect Of Change On Diluted Earnings Per Share
NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDilutedEarningsPerShare
|
0.17 | |
| CY2017 | us-gaap |
New Accounting Pronouncement Or Change In Accounting Principle Effect Of Change On Net Income
NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome
|
10000000 | USD |
| CY2015 | us-gaap |
Noncash Or Part Noncash Acquisition Fixed Assets Acquired1
NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1
|
0 | USD |
| CY2016 | us-gaap |
Noncash Or Part Noncash Acquisition Fixed Assets Acquired1
NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1
|
78000 | USD |
| CY2017 | us-gaap |
Noncash Or Part Noncash Acquisition Fixed Assets Acquired1
NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1
|
0 | USD |
| CY2017 | us-gaap |
Number Of Operating Segments
NumberOfOperatingSegments
|
4 | |
| CY2015 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
28396000 | USD |
| CY2016 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
35024000 | USD |
| CY2017 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
36255000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
31900000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
2100000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
3700000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
6000000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
7500000 | USD |
| CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
2600000 | USD |
| CY2017Q4 | us-gaap |
Operating Loss Carryforwards
OperatingLossCarryforwards
|
300000 | USD |
| CY2016Q4 | us-gaap |
Other Assets
OtherAssets
|
113534000 | USD |
| CY2017Q4 | us-gaap |
Other Assets
OtherAssets
|
122371000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
1585000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
-7852000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
-3700000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
853000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
-4227000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
-984000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
-44945000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
-10037000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
|
-4200000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
|
-1367000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
|
-2477000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
|
-2262000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
57294000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-29213000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-6525000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
36120000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
|
-9515000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
|
5617000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
|
2582000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-6185000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
3652000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
2333000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax
|
2438000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax
|
-12079000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax
|
-4684000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
|
-3330000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
|
1965000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
|
249000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
14016000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
-4713000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
6979000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
9110000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
-3064000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
4537000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
4906000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
-1649000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
2442000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
|
-7077000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
|
-6462000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
|
-2102000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
|
-4600000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
|
-735000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
-15732000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
-3512000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
21174000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
-40221000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
-9195000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
66894000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
-26143000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
-5977000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
43015000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
-14078000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
-3218000 | USD |
| CY2017Q1 | us-gaap |
Other Income
OtherIncome
|
3241000 | USD |
| CY2015 | us-gaap |
Payments For Losses And Loss Adjustment Expense
PaymentsForLossesAndLossAdjustmentExpense
|
1087724000 | USD |
| CY2016Q4 | us-gaap |
Other Short Term Investments
OtherShortTermInvestments
|
221701000 | USD |
| CY2017Q4 | us-gaap |
Other Short Term Investments
OtherShortTermInvestments
|
165555000 | USD |
| CY2015 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest
|
0 | USD |
| CY2016 | us-gaap |
Payments For Losses And Loss Adjustment Expense
PaymentsForLossesAndLossAdjustmentExpense
|
1120987000 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest
|
-10000 | USD |
| CY2017 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest
|
36000 | USD |
| CY2015 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Portion Attributable To Parent
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
|
0 | USD |
| CY2017 | us-gaap |
Payments For Losses And Loss Adjustment Expense
PaymentsForLossesAndLossAdjustmentExpense
|
1240208000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Productive Assets
PaymentsForProceedsFromProductiveAssets
|
16229000 | USD |
| CY2016 | us-gaap |
Payments For Proceeds From Productive Assets
PaymentsForProceedsFromProductiveAssets
|
18147000 | USD |
| CY2017 | us-gaap |
Payments For Proceeds From Productive Assets
PaymentsForProceedsFromProductiveAssets
|
14071000 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Portion Attributable To Parent
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
|
-10000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
23879000 | USD |
| CY2015 | us-gaap |
Other Income
OtherIncome
|
7456000 | USD |
| CY2016Q1 | us-gaap |
Other Income
OtherIncome
|
951000 | USD |
| CY2016Q2 | us-gaap |
Other Income
OtherIncome
|
3868000 | USD |
| CY2016Q3 | us-gaap |
Other Income
OtherIncome
|
2199000 | USD |
| CY2016Q4 | us-gaap |
Other Income
OtherIncome
|
1863000 | USD |
| CY2016 | us-gaap |
Other Income
OtherIncome
|
8881000 | USD |
| CY2017 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Portion Attributable To Parent
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
|
36000 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
6000 | USD |
| CY2015 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet
|
18366000 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet
|
8499000 | USD |
| CY2017 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet
|
4845000 | USD |
| CY2015 | us-gaap |
Other Underwriting Expense
OtherUnderwritingExpense
|
300359000 | USD |
| CY2016 | us-gaap |
Other Underwriting Expense
OtherUnderwritingExpense
|
321395000 | USD |
| CY2017 | us-gaap |
Other Underwriting Expense
OtherUnderwritingExpense
|
333097000 | USD |
| CY2017 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
-23000 | USD |
| CY2017Q2 | us-gaap |
Other Income
OtherIncome
|
3291000 | USD |
| CY2017Q3 | us-gaap |
Other Income
OtherIncome
|
1994000 | USD |
| CY2017Q4 | us-gaap |
Other Income
OtherIncome
|
2190000 | USD |
| CY2017 | us-gaap |
Other Income
OtherIncome
|
10716000 | USD |
| CY2016Q4 | us-gaap |
Other Investments
OtherInvestments
|
102397000 | USD |
| CY2017Q4 | us-gaap |
Other Investments
OtherInvestments
|
132268000 | USD |
| CY2016Q4 | us-gaap |
Other Liabilities
OtherLiabilities
|
298393000 | USD |
| CY2017Q4 | us-gaap |
Other Liabilities
OtherLiabilities
|
281624000 | USD |
| CY2015 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
4182000 | USD |
| CY2016 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
4992000 | USD |
| CY2017 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
6015000 | USD |
| CY2015 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
31052000 | USD |
| CY2016 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
33758000 | USD |
| CY2017 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
37045000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
1041916000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
1982023000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
2130362000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Available For Sale Securities Equity
PaymentsToAcquireAvailableForSaleSecuritiesEquity
|
195720000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Available For Sale Securities Equity
PaymentsToAcquireAvailableForSaleSecuritiesEquity
|
35490000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Available For Sale Securities Equity
PaymentsToAcquireAvailableForSaleSecuritiesEquity
|
61931000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Held To Maturity Securities
PaymentsToAcquireHeldToMaturitySecurities
|
3316000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Held To Maturity Securities
PaymentsToAcquireHeldToMaturitySecurities
|
4235000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Held To Maturity Securities
PaymentsToAcquireHeldToMaturitySecurities
|
0 | USD |
| CY2015 | us-gaap |
Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
|
12170000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
|
66164000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
|
55830000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
|
1602327000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
|
3499380000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
|
4280553000 | USD |
| CY2015 | us-gaap |
Policyholder Benefits And Claims Incurred Gross
PolicyholderBenefitsAndClaimsIncurredGross
|
1274872000 | USD |
| CY2016 | us-gaap |
Policyholder Benefits And Claims Incurred Gross
PolicyholderBenefitsAndClaimsIncurredGross
|
1560356000 | USD |
| CY2017 | us-gaap |
Policyholder Benefits And Claims Incurred Gross
PolicyholderBenefitsAndClaimsIncurredGross
|
1570678000 | USD |
| CY2015Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0 | |
| CY2016Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0 | |
| CY2017Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0 | |
| CY2015Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
5000000 | shares |
| CY2016Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
5000000 | shares |
| CY2017Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
5000000 | shares |
| CY2015Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | shares |
| CY2016Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | shares |
| CY2017Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | shares |
| CY2016Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
| CY2017Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
| CY2016Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
0 | USD |
| CY2017Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
0 | USD |
| CY2015 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
1989909000 | USD |
| CY2016Q1 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
522458000 | USD |
| CY2016Q2 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
531932000 | USD |
| CY2016Q3 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
542429000 | USD |
| CY2016Q4 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
552753000 | USD |
| CY2016 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
2149572000 | USD |
| CY2017Q1 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
560854000 | USD |
| CY2017Q2 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
568030000 | USD |
| CY2017Q3 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
572055000 | USD |
| CY2017Q4 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
590088000 | USD |
| CY2017 | us-gaap |
Premiums Earned Net Property And Casualty
PremiumsEarnedNetPropertyAndCasualty
|
2291027000 | USD |
| CY2015 | us-gaap |
Premiums Percentage Assumed To Net
PremiumsPercentageAssumedToNet
|
0.01 | |
| CY2016 | us-gaap |
Premiums Percentage Assumed To Net
PremiumsPercentageAssumedToNet
|
0.01 | |
| CY2017 | us-gaap |
Premiums Percentage Assumed To Net
PremiumsPercentageAssumedToNet
|
0.01 | |
| CY2016Q4 | us-gaap |
Premiums Receivable Allowance For Doubtful Accounts
PremiumsReceivableAllowanceForDoubtfulAccounts
|
5980000 | USD |
| CY2017Q4 | us-gaap |
Premiums Receivable Allowance For Doubtful Accounts
PremiumsReceivableAllowanceForDoubtfulAccounts
|
10000000 | USD |
| CY2016Q4 | us-gaap |
Premiums Receivable At Carrying Value
PremiumsReceivableAtCarryingValue
|
681611000 | USD |
| CY2017Q4 | us-gaap |
Premiums Receivable At Carrying Value
PremiumsReceivableAtCarryingValue
|
747029000 | USD |
| CY2015 | us-gaap |
Premiums Written Net
PremiumsWrittenNet
|
2069904000 | USD |
| CY2016 | us-gaap |
Premiums Written Net
PremiumsWrittenNet
|
2237288000 | USD |
| CY2017 | us-gaap |
Premiums Written Net
PremiumsWrittenNet
|
2370641000 | USD |
| CY2016Q4 | us-gaap |
Prepaid Reinsurance Premiums
PrepaidReinsurancePremiums
|
146282000 | USD |
| CY2017Q4 | us-gaap |
Prepaid Reinsurance Premiums
PrepaidReinsurancePremiums
|
153493000 | USD |
| CY2016 | us-gaap |
Proceeds From Debt Net Of Issuance Costs
ProceedsFromDebtNetOfIssuanceCosts
|
15000000 | USD |
| CY2015 | us-gaap |
Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
|
32457000 | USD |
| CY2016 | us-gaap |
Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
|
26837000 | USD |
| CY2017 | us-gaap |
Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
|
23426000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
10089000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
7811000 | USD |
| CY2016Q4 | us-gaap |
Reinsurance Recoverables
ReinsuranceRecoverables
|
621537000 | USD |
| CY2017Q4 | us-gaap |
Reinsurance Recoverables
ReinsuranceRecoverables
|
594832000 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
7599000 | USD |
| CY2015 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
567445000 | USD |
| CY2015 | us-gaap |
Proceeds From Sale Of Short Term Investments
ProceedsFromSaleOfShortTermInvestments
|
1539480000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Short Term Investments
ProceedsFromSaleOfShortTermInvestments
|
3470022000 | USD |
| CY2016 | us-gaap |
Reinsurance Effect On Claims And Benefits Incurred Amount Assumed
ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed
|
22708000 | USD |
| CY2017 | us-gaap |
Reinsurance Effect On Claims And Benefits Incurred Amount Assumed
ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed
|
17588000 | USD |
| CY2015 | us-gaap |
Reinsurance Effect On Claims And Benefits Incurred Amount Ceded
ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded
|
143327000 | USD |
| CY2016 | us-gaap |
Reinsurance Effect On Claims And Benefits Incurred Amount Ceded
ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded
|
348267000 | USD |
| CY2017 | us-gaap |
Reinsurance Effect On Claims And Benefits Incurred Amount Ceded
ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded
|
243192000 | USD |
| CY2014Q4 | us-gaap |
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments
ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments
|
571978000 | USD |
| CY2015Q4 | us-gaap |
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments
ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments
|
551019000 | USD |
| CY2016Q4 | us-gaap |
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments
ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments
|
611200000 | USD |
| CY2017Q4 | us-gaap |
Reinsurance Recoverable For Unpaid Claims And Claims Adjustments
ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments
|
585855000 | USD |
| CY2016 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
641524000 | USD |
| CY2017 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
555216000 | USD |
| CY2015 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities
|
106621000 | USD |
| CY2016 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities
|
102868000 | USD |
| CY2017 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities
|
58832000 | USD |
| CY2015 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
234100000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
1046100000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
1235900000 | USD |
| CY2015 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
61571000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
926470000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
1197920000 | USD |
| CY2015 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Equity
ProceedsFromSaleOfAvailableForSaleSecuritiesEquity
|
172561000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Equity
ProceedsFromSaleOfAvailableForSaleSecuritiesEquity
|
119617000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Equity
ProceedsFromSaleOfAvailableForSaleSecuritiesEquity
|
37960000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Short Term Investments
ProceedsFromSaleOfShortTermInvestments
|
4338318000 | USD |
| CY2016Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
69576000 | USD |
| CY2017Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
63959000 | USD |
| CY2015 | us-gaap |
Realized Investment Gains Losses
RealizedInvestmentGainsLosses
|
13171000 | USD |
| CY2016 | us-gaap |
Realized Investment Gains Losses
RealizedInvestmentGainsLosses
|
-4937000 | USD |
| CY2017 | us-gaap |
Realized Investment Gains Losses
RealizedInvestmentGainsLosses
|
6359000 | USD |
| CY2015 | us-gaap |
Reinsurance Effect On Claims And Benefits Incurred Amount Assumed
ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed
|
16996000 | USD |
| CY2016Q4 | us-gaap |
Reinsurance Recoverables Allowance
ReinsuranceRecoverablesAllowance
|
5500000 | USD |
| CY2017Q4 | us-gaap |
Reinsurance Recoverables Allowance
ReinsuranceRecoverablesAllowance
|
4600000 | USD |
| CY2015 | us-gaap |
Repayments Of Federal Home Loan Bank Borrowings
RepaymentsOfFederalHomeLoanBankBorrowings
|
0 | USD |
| CY2016 | us-gaap |
Repayments Of Federal Home Loan Bank Borrowings
RepaymentsOfFederalHomeLoanBankBorrowings
|
115000000 | USD |
| CY2017 | us-gaap |
Repayments Of Federal Home Loan Bank Borrowings
RepaymentsOfFederalHomeLoanBankBorrowings
|
84000000 | USD |
| CY2015 | us-gaap |
Repayments Of Long Term Capital Lease Obligations
RepaymentsOfLongTermCapitalLeaseObligations
|
4689000 | USD |
| CY2016 | us-gaap |
Repayments Of Long Term Capital Lease Obligations
RepaymentsOfLongTermCapitalLeaseObligations
|
5002000 | USD |
| CY2017 | us-gaap |
Repayments Of Long Term Capital Lease Obligations
RepaymentsOfLongTermCapitalLeaseObligations
|
4121000 | USD |
| CY2016Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
1568881000 | USD |
| CY2017Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
1698613000 | USD |
| CY2015 | us-gaap |
Revenues
Revenues
|
2131852000 | USD |
| CY2016Q1 | us-gaap |
Revenues
Revenues
|
551474000 | USD |
| CY2016Q2 | us-gaap |
Revenues
Revenues
|
568747000 | USD |
| CY2016Q3 | us-gaap |
Revenues
Revenues
|
581691000 | USD |
| CY2016Q4 | us-gaap |
Revenues
Revenues
|
582358000 | USD |
| CY2016 | us-gaap |
Revenues
Revenues
|
2284270000 | USD |
| CY2017Q1 | us-gaap |
Revenues
Revenues
|
600469000 | USD |
| CY2017Q2 | us-gaap |
Revenues
Revenues
|
614485000 | USD |
| CY2017Q3 | us-gaap |
Revenues
Revenues
|
621293000 | USD |
| CY2017Q4 | us-gaap |
Revenues
Revenues
|
633737000 | USD |
| CY2017 | us-gaap |
Revenues
Revenues
|
2469984000 | USD |
| CY2015Q4 | us-gaap |
Salvage And Subrogation Recoveries Value
SalvageAndSubrogationRecoveriesValue
|
62100000 | USD |
| CY2016Q4 | us-gaap |
Salvage And Subrogation Recoveries Value
SalvageAndSubrogationRecoveriesValue
|
64900000 | USD |
| CY2017Q4 | us-gaap |
Salvage And Subrogation Recoveries Value
SalvageAndSubrogationRecoveriesValue
|
64800000 | USD |
| CY2017Q4 | us-gaap |
Security Owned And Pledged As Collateral Fair Value
SecurityOwnedAndPledgedAsCollateralFairValue
|
164900000 | USD |
| CY2015 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
8973000 | USD |
| CY2016 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
10449000 | USD |
| CY2017 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
12089000 | USD |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
229864 | shares |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
15.38 | |
| CY2015 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
2200000 | USD |
| CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
2300000 | USD |
| CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
4000000 | USD |
| CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
|
-5031 | shares |
| CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
|
24.54 | |
| CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
|
0 | shares |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
9958000 | USD |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
355391 | shares |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
229864 | shares |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
16.87 | |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
15.38 | |
| CY2017 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
19.39 | |
| CY2017 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
|
0.00 | |
| CY2017Q4 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
|
9958000 | USD |
| CY2017 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
|
P1Y6M | |
| CY2017 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P1Y6M | |
| CY2017Q4 | us-gaap |
Shortduration Insurance Contracts Cumulative Paid Claims And Allocated Claim Adjustment Expense Net
ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet
|
7727861000 | USD |
| CY2017Q4 | us-gaap |
Shortduration Insurance Contracts Incurred Claims And Allocated Claim Adjustment Expense Net
ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseNet
|
10417364000 | USD |
| CY2017Q4 | us-gaap |
Shortduration Insurance Contracts Liability For Unpaid Claims And Allocated Claim Adjustment Expense Net
ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet
|
3041694000 | USD |
| CY2017Q4 | us-gaap |
Shortduration Insurance Contracts Liability For Unpaid Claims And Claims Adjustment Expense Accumulated Unallocated Claim Adjustment Expense
ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseAccumulatedUnallocatedClaimAdjustmentExpense
|
143691000 | USD |
| CY2017Q4 | us-gaap |
Statutory Accounting Practices Statutory Amount Available For Dividend Payments With Regulatory Approval
StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval
|
211000000 | USD |
| CY2016Q4 | us-gaap |
Statutory Accounting Practices Statutory Capital And Surplus Balance
StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance
|
1583800000 | USD |
| CY2017Q4 | us-gaap |
Statutory Accounting Practices Statutory Capital And Surplus Balance
StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance
|
1672900000 | USD |
| CY2015 | us-gaap |
Statutory Accounting Practices Statutory Net Income Amount
StatutoryAccountingPracticesStatutoryNetIncomeAmount
|
195800000 | USD |
| CY2016 | us-gaap |
Statutory Accounting Practices Statutory Net Income Amount
StatutoryAccountingPracticesStatutoryNetIncomeAmount
|
202300000 | USD |
| CY2017 | us-gaap |
Statutory Accounting Practices Statutory Net Income Amount
StatutoryAccountingPracticesStatutoryNetIncomeAmount
|
221200000 | USD |
| CY2015 | us-gaap |
Stock Issued During Period Shares Dividend Reinvestment Plan
StockIssuedDuringPeriodSharesDividendReinvestmentPlan
|
50013 | shares |
| CY2016 | us-gaap |
Stock Issued During Period Shares Dividend Reinvestment Plan
StockIssuedDuringPeriodSharesDividendReinvestmentPlan
|
38741 | shares |
| CY2017 | us-gaap |
Stock Issued During Period Shares Dividend Reinvestment Plan
StockIssuedDuringPeriodSharesDividendReinvestmentPlan
|
28607 | shares |
| CY2017 | us-gaap |
Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense
SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
|
-39192000 | USD |
| CY2015 | us-gaap |
Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs
SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts
|
399436000 | USD |
| CY2015 | us-gaap |
Supplementary Insurance Information Other Operating Expense
SupplementaryInsuranceInformationOtherOperatingExpense
|
292903000 | USD |
| CY2016 | us-gaap |
Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs
SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts
|
450328000 | USD |
| CY2015 | us-gaap |
Stock Issued During Period Shares Share Based Compensation
StockIssuedDuringPeriodSharesShareBasedCompensation
|
863426 | shares |
| CY2016 | us-gaap |
Stock Issued During Period Shares Share Based Compensation
StockIssuedDuringPeriodSharesShareBasedCompensation
|
720323 | shares |
| CY2017 | us-gaap |
Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs
SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts
|
469236000 | USD |
| CY2016 | us-gaap |
Supplementary Insurance Information Other Operating Expense
SupplementaryInsuranceInformationOtherOperatingExpense
|
312514000 | USD |
| CY2017 | us-gaap |
Stock Issued During Period Shares Share Based Compensation
StockIssuedDuringPeriodSharesShareBasedCompensation
|
635521 | shares |
| CY2017 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
-120496 | shares |
| CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1712957000 | USD |
| CY2017Q4 | us-gaap |
Summary Of Investments Other Than Investments In Related Parties Carrying Amount
SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount
|
5685179000 | USD |
| CY2017Q4 | us-gaap |
Summary Of Investments Other Than Investments In Related Parties Cost
SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCost
|
5560500000 | USD |
| CY2015 | us-gaap |
Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense
SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
|
1217550000 | USD |
| CY2016 | us-gaap |
Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense
SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
|
1300565000 | USD |
| CY2017 | us-gaap |
Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense
SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
|
1384266000 | USD |
| CY2015 | us-gaap |
Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense
SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
|
-69009000 | USD |
| CY2016 | us-gaap |
Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense
SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
|
-65768000 | USD |
| CY2017 | us-gaap |
Supplementary Insurance Information Other Operating Expense
SupplementaryInsuranceInformationOtherOperatingExpense
|
322381000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1398041000 | USD |
| CY2016Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1531370000 | USD |
| CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1712957000 | USD |
| CY2015 | us-gaap |
Supplementary Insurance Information Benefits Claims Losses And Settlement Expense
SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
|
1148541000 | USD |
| CY2016 | us-gaap |
Supplementary Insurance Information Benefits Claims Losses And Settlement Expense
SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
|
1234797000 | USD |
| CY2017 | us-gaap |
Supplementary Insurance Information Benefits Claims Losses And Settlement Expense
SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
|
1345074000 | USD |
| CY2015Q4 | us-gaap |
Supplementary Insurance Information Deferred Policy Acquisition Costs
SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts
|
213159000 | USD |
| CY2016Q4 | us-gaap |
Supplementary Insurance Information Deferred Policy Acquisition Costs
SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts
|
222564000 | USD |
| CY2017Q4 | us-gaap |
Supplementary Insurance Information Deferred Policy Acquisition Costs
SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts
|
235055000 | USD |
| CY2015Q4 | us-gaap |
Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves
SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
|
3517728000 | USD |
| CY2016Q4 | us-gaap |
Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves
SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
|
3691719000 | USD |
| CY2017Q4 | us-gaap |
Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves
SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
|
3771240000 | USD |
| CY2015 | us-gaap |
Supplementary Insurance Information Net Investment Income
SupplementaryInsuranceInformationNetInvestmentIncome
|
134487000 | USD |
| CY2016 | us-gaap |
Supplementary Insurance Information Net Investment Income
SupplementaryInsuranceInformationNetInvestmentIncome
|
125817000 | USD |
| CY2017 | us-gaap |
Supplementary Insurance Information Net Investment Income
SupplementaryInsuranceInformationNetInvestmentIncome
|
168241000 | USD |
| CY2015 | us-gaap |
Supplementary Insurance Information Premium Revenue
SupplementaryInsuranceInformationPremiumRevenue
|
1989909000 | USD |
| CY2016 | us-gaap |
Supplementary Insurance Information Premium Revenue
SupplementaryInsuranceInformationPremiumRevenue
|
2149572000 | USD |
| CY2017 | us-gaap |
Supplementary Insurance Information Premium Revenue
SupplementaryInsuranceInformationPremiumRevenue
|
2291027000 | USD |
| CY2015 | us-gaap |
Supplementary Insurance Information Premiums Written
SupplementaryInsuranceInformationPremiumsWritten
|
2069904000 | USD |
| CY2016 | us-gaap |
Supplementary Insurance Information Premiums Written
SupplementaryInsuranceInformationPremiumsWritten
|
2237288000 | USD |
| CY2017 | us-gaap |
Supplementary Insurance Information Premiums Written
SupplementaryInsuranceInformationPremiumsWritten
|
2370641000 | USD |
| CY2015Q4 | us-gaap |
Supplementary Insurance Information Unearned Premiums
SupplementaryInsuranceInformationUnearnedPremiums
|
1169710000 | USD |
| CY2016Q4 | us-gaap |
Supplementary Insurance Information Unearned Premiums
SupplementaryInsuranceInformationUnearnedPremiums
|
1262819000 | USD |
| CY2017Q4 | us-gaap |
Supplementary Insurance Information Unearned Premiums
SupplementaryInsuranceInformationUnearnedPremiums
|
1349644000 | USD |
| CY2016Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
43653237 | shares |
| CY2017Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
43789442 | shares |
| CY2015 | us-gaap |
Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
|
147461 | shares |
| CY2016 | us-gaap |
Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
|
152595 | shares |
| CY2017 | us-gaap |
Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
|
136205 | shares |
| CY2016Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
572097000 | USD |
| CY2017Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
578112000 | USD |
| CY2016Q4 | us-gaap |
Unearned Premiums
UnearnedPremiums
|
1262819000 | USD |
| CY2017Q4 | us-gaap |
Unearned Premiums
UnearnedPremiums
|
1349644000 | USD |
| CY2014Q4 | us-gaap |
Valuation Allowances And Reserves Balance
ValuationAllowancesAndReservesBalance
|
11037000 | USD |
| CY2015Q4 | us-gaap |
Valuation Allowances And Reserves Balance
ValuationAllowancesAndReservesBalance
|
10122000 | USD |
| CY2016Q4 | us-gaap |
Valuation Allowances And Reserves Balance
ValuationAllowancesAndReservesBalance
|
11480000 | USD |
| CY2017Q4 | us-gaap |
Valuation Allowances And Reserves Balance
ValuationAllowancesAndReservesBalance
|
14600000 | USD |
| CY2015 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
3604000 | USD |
| CY2016 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
4669000 | USD |
| CY2017 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
6414000 | USD |
| CY2015 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
4519000 | USD |
| CY2016 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
3311000 | USD |
| CY2017 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
3294000 | USD |
| CY2015 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
944000 | shares |
| CY2016 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
858000 | shares |
| CY2017 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
899000 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
58156000 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
58747000 | shares |
| CY2017 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
59357000 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
57212000 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
57889000 | shares |
| CY2017 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
58458000 | shares |
| CY2017 | sigi |
Schedule Of Other Investment Portfolio By Strategy And Remaining Commitment Amount Associated With Each Strategy Textblock
ScheduleOfOtherInvestmentPortfolioByStrategyAndRemainingCommitmentAmountAssociatedWithEachStrategyTextblock
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="20" rowspan="1"></td></tr><tr><td style="width:22%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:9%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:11%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:12%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:11%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:12%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Other Investments</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="9" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">December 31, 2017</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="8" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">December 31, 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">($ in thousands)</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Carrying</font></div><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Value</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Remaining</font></div><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Commitment</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Maximum</font></div><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Exposure to Loss</font><font style="font-family:inherit;font-size:8pt;font-weight:bold;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">1</sup></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Carrying</font></div><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Value</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Remaining<br clear="none"/>Commitment</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Maximum<br clear="none"/>Exposure to Loss</font><font style="font-family:inherit;font-size:8pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">1</sup></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Alternative Investments</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Private equity</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">52,251</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">99,026</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">151,277</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">41,135</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">76,774</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">117,909</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Private credit</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">37,743</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">94,959</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">132,702</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">28,193</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">40,613</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">68,806</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Real assets</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">25,379</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">27,014</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">52,393</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">14,486</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">22,899</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">37,385</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Total alternative investments</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">115,373</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">220,999</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">336,372</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">83,814</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">140,286</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">224,100</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Other securities</font><font style="font-family:inherit;font-size:8pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">2</sup></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">16,895</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">—</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">16,895</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">18,583</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">3,400</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">21,983</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Total other investments</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">132,268</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">220,999</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">353,267</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">102,397</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">143,686</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">246,083</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div></div> | |
| CY2017 | us-gaap |
Nature Of Operations
NatureOfOperations
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;text-decoration:underline;">Organization</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Selective Insurance Group, Inc., through its subsidiaries, (collectively referred to as “we,” “us,” or “our”) offers standard commercial, standard personal, and excess and surplus ("E&S") lines property and casualty insurance products. Selective Insurance Group, Inc. (referred to as the “Parent”) was incorporated in New Jersey in 1977 and its corporate headquarters is located in Branchville, New Jersey. The Parent’s common stock is publicly traded on the NASDAQ Global Select Market under the symbol “SIGI.” We have provided a glossary of terms as Exhibit 99.1 to this Form 10-K, which defines certain industry-specific and other terms that are used in this Form 10-K.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;padding-bottom:13px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We classify our business into four reportable segments, which are as follows:</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Standard Commercial Lines - comprised of insurance products and services provided in the standard marketplace to commercial enterprises, which are typically businesses, non-profit organizations, and local government agencies.</font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Standard Personal Lines - comprised of insurance products and services, including flood insurance coverage, provided primarily to individuals acquiring coverage in the standard marketplace.</font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">E&S Lines - comprised of insurance products and services provided to customers who have not obtained coverage in the standard marketplace.</font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Investments - invests the premiums collected by our insurance operations, as well as amounts generated through our capital management strategies, which may include the issuance of debt and equity securities.</font></div></td></tr></table></div> | |
| CY2017 | us-gaap |
Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
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<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Reclassifications</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2017</font><font style="font-family:inherit;font-size:10pt;">, we reclassified certain line items within our Consolidated Statements of Income to enhance the ability to analyze our expenses. Specifically, we reclassified our insurance underwriting expenses into amortization of deferred policy acquisition costs and other insurance expenses. These expenses were previously included in policy acquisition costs and other expenses. In addition, all expenses of the Parent, which were previously included in other expenses, are now separately identifiable as corporate expenses on the Consolidated Statements of Income. All prior periods presented in this Form 10-K have been reclassified to reflect this change.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></div> | |
| CY2017 | us-gaap |
Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense
ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense
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<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:4px;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:98.08429118773945%;border-collapse:collapse;text-align:left;"><tr><td colspan="11" rowspan="1"></td></tr><tr><td style="width:61%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:11%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:11%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">($ in thousands)</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">2016</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">2015</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Gross reserves for loss and loss expense, at beginning of year</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">3,691,719</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">3,517,728</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">3,477,870</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Less: reinsurance recoverable on unpaid loss and loss expense, at beginning of year</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">611,200</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">551,019</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">571,978</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Net reserves for loss and loss expense, at beginning of year</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">3,080,519</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">2,966,709</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">2,905,892</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Incurred loss and loss expense for claims occurring in the:</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;"> </font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Current year</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">1,384,266</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">1,300,565</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">1,217,550</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Prior years</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">(39,192</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">(65,768</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">(69,009</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Total incurred loss and loss expense</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">1,345,074</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">1,234,797</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">1,148,541</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Paid loss and loss expense for claims occurring in the:</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;"> </font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Current year</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">497,486</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">450,811</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">446,550</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Prior years</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">742,722</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">670,176</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">641,174</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Total paid loss and loss expense</font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">1,240,208</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">1,120,987</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">1,087,724</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Net reserves for loss and loss expense, at end of year</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">3,185,385</font></div></td><td style="vertical-align:bottom;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">3,080,519</font></div></td><td style="vertical-align:bottom;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">2,966,709</font></div></td><td style="vertical-align:bottom;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#d0ffd0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Add: Reinsurance recoverable on unpaid loss and loss expense, at end of year</font></div></td><td style="vertical-align:bottom;background-color:#d0ffd0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#d0ffd0;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">585,855</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#d0ffd0;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#d0ffd0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#d0ffd0;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">611,200</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#d0ffd0;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#d0ffd0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#d0ffd0;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">551,019</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#d0ffd0;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Gross reserves for loss and loss expense at end of year</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">3,771,240</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">3,691,719</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">3,517,728</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-top:4px;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br clear="none"/></font></div></div> | |
| CY2017 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Use of Estimates</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of our Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported financial statement balances, as well as the disclosure of contingent assets and liabilities. Actual results could differ from those estimates.</font></div></div> |
