$SIGI
Selective Insurance Group Inc Stock $sigi

$sigi Overview Financials Valuation SEC Filings Company Website

2015 Q3 Form 10-Q Financial Statement

#000023055715000017 Filed on July 30, 2015

Income Statement

Concept	2015 Q3	2015 Q2	2014 Q2
Revenue	$540.5M	$522.0M	$506.8M
YoY Change	4.87%	2.98%	8.08%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$14.80M	$15.10M	$8.300M
YoY Change	21.31%	81.93%	-17.0%
% of Gross Profit
Operating Expenses	$469.1M	$469.7M	$461.9M
YoY Change	7.96%	1.69%	8.15%
Operating Profit
YoY Change
Interest Expense	-$5.500M	-$5.500M	-$5.400M
YoY Change	-1.79%	1.85%	-3.57%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$65.84M	$46.77M	$39.52M
YoY Change	-12.59%	18.33%	9.17%
Income Tax	$18.84M	$13.00M	$10.18M
% Of Pretax Income	28.62%	27.79%	25.76%
Net Earnings	$47.00M	$33.77M	$29.34M
YoY Change	-11.6%	15.09%	8.18%
Net Earnings / Revenue	8.7%	6.47%	5.79%
Basic Earnings Per Share	$0.82	$0.59	$0.52
Diluted Earnings Per Share	$0.81	$0.58	$0.51
COMMON SHARES
Basic Shares Outstanding	57.11M shares	56.95M shares	56.37M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2015 Q3	2015 Q2	2014 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents
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	$65.66M	$62.18M	$53.84M
YoY Change	18.23%	15.5%	10.23%
Goodwill	$7.849M	$7.849M	$7.849M
YoY Change	0.0%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$5.014B	$4.923B	$4.739B
YoY Change	4.39%	3.89%	8.52%
Other Assets	$93.10M	$106.2M	$97.40M
YoY Change	0.32%	9.03%	-28.33%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$6.898B	$6.784B	$6.491B
YoY Change	4.88%	4.53%	6.18%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$158.0M	$140.2M	$84.90M
YoY Change	62.05%	65.14%	-16.93%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$170.6M	$153.8M	$95.10M
YoY Change	49.91%	61.72%	-6.95%
LONG-TERM LIABILITIES
Long-Term Debt	$394.3M	$394.3M	$392.3M
YoY Change	0.51%	0.51%	-0.03%
Other Long-Term Liabilities	$237.5M	$212.6M	$213.0M
YoY Change	10.62%	-0.19%	6.08%
Total Long-Term Liabilities	$631.8M	$606.9M	$605.3M
YoY Change	4.09%	0.26%	2.04%
TOTAL LIABILITIES
Total Short-Term Liabilities	$170.6M	$153.8M	$95.10M
Total Long-Term Liabilities	$631.8M	$606.9M	$605.3M
Total Liabilities	$5.539B	$5.474B	$5.253B
YoY Change	4.3%	4.22%	4.77%
SHAREHOLDERS EQUITY
Retained Earnings	$1.410B	$1.371B	$1.234B
YoY Change	10.11%	11.03%	6.52%
Common Stock	$522.3M	$518.5M	$497.7M
YoY Change	4.48%	4.16%	3.73%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$566.8M	$566.5M	$562.1M
YoY Change	0.81%	0.78%	0.58%
Treasury Stock Shares	43.49M shares	43.48M shares	43.32M shares
Shareholders Equity	$1.359B	$1.310B	$1.238B
YoY Change
Total Liabilities & Shareholders Equity	$6.898B	$6.784B	$6.491B
YoY Change	4.88%	4.53%	6.18%

Cashflow Statement

Concept	2015 Q3	2015 Q2	2014 Q2
OPERATING ACTIVITIES
Net Income	$47.00M	$33.77M	$29.34M
YoY Change	-11.6%	15.09%	8.18%
Depreciation, Depletion And Amortization	$14.80M	$15.10M	$8.300M
YoY Change	21.31%	81.93%	-17.0%
Cash From Operating Activities	$93.40M	$105.0M	$36.90M
YoY Change	9.37%	184.55%	-47.13%
INVESTING ACTIVITIES
Capital Expenditures	-$4.300M	-$3.500M	-$900.0K
YoY Change	65.38%	288.89%	-70.97%
Acquisitions
YoY Change
Other Investing Activities	-$67.20M	-$109.1M	-$29.10M
YoY Change	-9.68%	274.91%	-53.44%
Cash From Investing Activities	-$71.50M	-$112.5M	-$30.00M
YoY Change	-7.14%	275.0%	-54.27%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-7.200M	-6.900M	-5.600M
YoY Change	-4.0%	23.21%	27.27%
NET CHANGE
Cash From Operating Activities	93.40M	105.0M	36.90M
Cash From Investing Activities	-71.50M	-112.5M	-30.00M
Cash From Financing Activities	-7.200M	-6.900M	-5.600M
Net Change In Cash	14.70M	-14.40M	1.300M
YoY Change	1533.33%	-1207.69%	-750.0%
FREE CASH FLOW
Cash From Operating Activities	$93.40M	$105.0M	$36.90M
Capital Expenditures	-$4.300M	-$3.500M	-$900.0K
Free Cash Flow	$97.70M	$108.5M	$37.80M
YoY Change	11.02%	187.04%	-48.15%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2015
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Period End Date DocumentPeriodEndDate	2015-06-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000230557
CY2015Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	57110201	shares
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	SELECTIVE INSURANCE GROUP INC
CY2014Q2	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Before Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax	221000	USD
	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Before Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax	677000	USD
CY2015Q2	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Before Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax	185000	USD
	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Before Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax	446000	USD
CY2014Q2	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax	77000	USD
	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax	237000	USD
CY2015Q2	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax	65000	USD
	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax	156000	USD
CY2014Q2	sigi	Amortizationof Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Netof Tax AmortizationofNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetofTax	144000	USD
	sigi	Amortizationof Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Netof Tax AmortizationofNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetofTax	440000	USD
CY2015Q2	sigi	Amortizationof Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Netof Tax AmortizationofNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetofTax	120000	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	8000000	USD
	sigi	Indiana Subsidiariesthataremembersofthe Fhlbi IndianaSubsidiariesthataremembersoftheFHLBI	two
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
	sigi	Amortizationof Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Netof Tax AmortizationofNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetofTax	290000	USD
CY2014Q4	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses	-2411000	USD
CY2015Q2	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses	-17119000	USD
CY2014Q4	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Aggregate Losses AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses	-8625000	USD
CY2015Q2	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Aggregate Losses AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses	-3636000	USD
CY2014Q4	sigi	Available For Saleand Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleandHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	466583000	USD
CY2015Q2	sigi	Available For Saleand Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleandHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1251943000	USD
CY2014Q4	sigi	Available For Saleand Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleandHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	444293000	USD
CY2015Q2	sigi	Available For Saleand Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleandHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	150111000	USD
CY2014Q2	sigi	Comprehensive Income Loss Before Tax ComprehensiveIncomeLossBeforeTax	80264000	USD
	sigi	Comprehensive Income Loss Before Tax ComprehensiveIncomeLossBeforeTax	131007000	USD
CY2015Q2	sigi	Comprehensive Income Loss Before Tax ComprehensiveIncomeLossBeforeTax	-8533000	USD
	sigi	Comprehensive Income Loss Before Tax ComprehensiveIncomeLossBeforeTax	53644000	USD
CY2014Q2	sigi	Comprehensive Income Loss Tax ComprehensiveIncomeLossTax	24440000	USD
	sigi	Comprehensive Income Loss Tax ComprehensiveIncomeLossTax	40531000	USD
CY2015Q2	sigi	Comprehensive Income Loss Tax ComprehensiveIncomeLossTax	-6357000	USD
	sigi	Comprehensive Income Loss Tax ComprehensiveIncomeLossTax	12285000	USD
CY2014Q1	sigi	Gross Premiums Writtenof Self Insured Pooled Group Book Of Business Sold GrossPremiumsWrittenofSelfInsuredPooledGroupBookOfBusinessSold	37000000	USD
CY2014Q4	sigi	Held To Maturity And Available For Sale Securities Unrecognized Gains Losses Aggregate Continuous Unrealized Loss Position For Twelve Months Or Longer HeldToMaturityAndAvailableForSaleSecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionForTwelveMonthsOrLonger	439000	USD
CY2015Q2	sigi	Held To Maturity And Available For Sale Securities Unrecognized Gains Losses Aggregate Continuous Unrealized Loss Position For Twelve Months Or Longer HeldToMaturityAndAvailableForSaleSecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionForTwelveMonthsOrLonger	272000	USD
CY2014Q4	sigi	Held To Maturity And Available For Sale Securities Unrecognized Gains Losses Aggregate Continuous Unrealized Loss Position Less Than Twelve Months HeldToMaturityAndAvailableForSaleSecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths	1000	USD
CY2015Q2	sigi	Held To Maturity And Available For Sale Securities Unrecognized Gains Losses Aggregate Continuous Unrealized Loss Position Less Than Twelve Months HeldToMaturityAndAvailableForSaleSecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths	0	USD
	sigi	Held To Maturity Securities Average Duration HeldToMaturitySecuritiesAverageDuration	P1Y7M8D
CY2014Q2	sigi	Held To Maturity Securities Disposal Security Realized Loss HeldToMaturitySecuritiesDisposalSecurityRealizedLoss	3000	USD
	sigi	Held To Maturity Securities Disposal Security Realized Loss HeldToMaturitySecuritiesDisposalSecurityRealizedLoss	14000	USD
CY2015Q2	sigi	Held To Maturity Securities Disposal Security Realized Loss HeldToMaturitySecuritiesDisposalSecurityRealizedLoss	0	USD
	sigi	Held To Maturity Securities Disposal Security Realized Loss HeldToMaturitySecuritiesDisposalSecurityRealizedLoss	1000	USD
CY2014Q4	sigi	Held To Maturity Securities Net Unrealized Gains Losses HeldToMaturitySecuritiesNetUnrealizedGainsLosses	958000	USD
CY2015Q2	sigi	Held To Maturity Securities Net Unrealized Gains Losses HeldToMaturitySecuritiesNetUnrealizedGainsLosses	513000	USD
CY2014Q2	sigi	Held To Maturity Securities Realized Gain HeldToMaturitySecuritiesRealizedGain	3000	USD
	sigi	Held To Maturity Securities Realized Gain HeldToMaturitySecuritiesRealizedGain	3000	USD
CY2015Q2	sigi	Held To Maturity Securities Realized Gain HeldToMaturitySecuritiesRealizedGain	2000	USD
	sigi	Held To Maturity Securities Realized Gain HeldToMaturitySecuritiesRealizedGain	2000	USD
CY2014Q4	sigi	Held To Maturity Securities Unrecognized Gains Losses Aggregate Continuous Unrealized Loss Position Less Than Twelve Months HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths	1000	USD
CY2015Q2	sigi	Held To Maturity Securities Unrecognized Gains Losses Aggregate Continuous Unrealized Loss Position Less Than Twelve Months HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths	0	USD
CY2014Q4	sigi	Held To Maturity Securities Unrecognized Gains Losses Aggregate Continuous Unrealized Loss Position Twelve Monthsor Longer HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionTwelveMonthsorLonger	439000	USD
CY2015Q2	sigi	Held To Maturity Securities Unrecognized Gains Losses Aggregate Continuous Unrealized Loss Position Twelve Monthsor Longer HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionTwelveMonthsorLonger	272000	USD
CY2014Q2	sigi	Income From Continuing Operations And Discontinued Operations Tax IncomeFromContinuingOperationsAndDiscontinuedOperationsTax	10180000	USD
	sigi	Income From Continuing Operations And Discontinued Operations Tax IncomeFromContinuingOperationsAndDiscontinuedOperationsTax	17290000	USD
CY2015Q2	sigi	Income From Continuing Operations And Discontinued Operations Tax IncomeFromContinuingOperationsAndDiscontinuedOperationsTax	12997000	USD
	sigi	Income From Continuing Operations And Discontinued Operations Tax IncomeFromContinuingOperationsAndDiscontinuedOperationsTax	29579000	USD
CY2014Q2	sigi	Income Loss From Continuing Operations And Discontinued Operations Before Federal Income Tax IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax	39521000	USD
	sigi	Income Loss From Continuing Operations And Discontinued Operations Before Federal Income Tax IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax	64605000	USD
CY2015Q2	sigi	Income Loss From Continuing Operations And Discontinued Operations Before Federal Income Tax IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax	46765000	USD
	sigi	Income Loss From Continuing Operations And Discontinued Operations Before Federal Income Tax IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax	103055000	USD
	sigi	Increase Decrease In Reserves For Losses And Loss Expenses Net Of Reinsurance Recoverables IncreaseDecreaseInReservesForLossesAndLossExpensesNetOfReinsuranceRecoverables	93675000	USD
	sigi	Increase Decrease In Reserves For Losses And Loss Expenses Net Of Reinsurance Recoverables IncreaseDecreaseInReservesForLossesAndLossExpensesNetOfReinsuranceRecoverables	66609000	USD
	sigi	Increase Decrease In Unearned Premiums Net Of Prepaid Reinsurance IncreaseDecreaseInUnearnedPremiumsNetOfPrepaidReinsurance	83789000	USD
CY2015Q2	sigi	Maximumexposuretocreditconcentrationriskofthe Companysstockholdersequityotherthancertain U.S.Governmentagencies MaximumexposuretocreditconcentrationriskoftheCompanysstockholdersequityotherthancertainU.S.governmentagencies	0.10
	sigi	Numberof Insurance Subsidiaries NumberofInsuranceSubsidiaries	ten
CY2014Q2	sigi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Non Credit Other Than Temporary Impaired Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNonCreditOtherThanTemporaryImpairedSecuritiesBeforeTax	-469000	USD
	sigi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Non Credit Other Than Temporary Impaired Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNonCreditOtherThanTemporaryImpairedSecuritiesBeforeTax	-469000	USD
	sigi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Non Credit Other Than Temporary Impaired Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNonCreditOtherThanTemporaryImpairedSecuritiesBeforeTax	-357000	USD
	sigi	Increase Decrease In Unearned Premiums Net Of Prepaid Reinsurance IncreaseDecreaseInUnearnedPremiumsNetOfPrepaidReinsurance	36453000	USD
CY2014Q4	sigi	Maximumexposuretocreditconcentrationriskofthe Companysstockholdersequityotherthancertain U.S.Governmentagencies MaximumexposuretocreditconcentrationriskoftheCompanysstockholdersequityotherthancertainU.S.governmentagencies	0.10
CY2014Q2	sigi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Non Credit Other Than Temporary Impaired Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNonCreditOtherThanTemporaryImpairedSecuritiesNetOfTax	-305000	USD
	sigi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Non Credit Other Than Temporary Impaired Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNonCreditOtherThanTemporaryImpairedSecuritiesNetOfTax	-305000	USD
CY2015Q2	sigi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Non Credit Other Than Temporary Impaired Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNonCreditOtherThanTemporaryImpairedSecuritiesNetOfTax	0	USD
	sigi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Non Credit Other Than Temporary Impaired Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNonCreditOtherThanTemporaryImpairedSecuritiesNetOfTax	-232000	USD
CY2014Q2	sigi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Non Credit Other Than Temporary Impaired Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNonCreditOtherThanTemporaryImpairedSecuritiesTax	-164000	USD
	sigi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Non Credit Other Than Temporary Impaired Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNonCreditOtherThanTemporaryImpairedSecuritiesTax	-164000	USD
	sigi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Non Credit Other Than Temporary Impaired Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNonCreditOtherThanTemporaryImpairedSecuritiesTax	-125000	USD
CY2014Q2	sigi	Other Investments Realized Gains OtherInvestmentsRealizedGains	0	USD
	sigi	Other Investments Realized Gains OtherInvestmentsRealizedGains	0	USD
CY2015Q2	sigi	Other Investments Realized Gains OtherInvestmentsRealizedGains	0	USD
	sigi	Other Investments Realized Gains OtherInvestmentsRealizedGains	0	USD
CY2014Q2	sigi	Other Investments Realized Losses OtherInvestmentsRealizedLosses	0	USD
	sigi	Other Investments Realized Losses OtherInvestmentsRealizedLosses	0	USD
CY2015Q2	sigi	Other Investments Realized Losses OtherInvestmentsRealizedLosses	0	USD
	sigi	Other Investments Realized Losses OtherInvestmentsRealizedLosses	654000	USD
	sigi	Percentage Of Unpaid Nfip Claims Ceded By Federal Government PercentageOfUnpaidNfipClaimsCededByFederalGovernment	1.00
CY2014Q2	sigi	Policy Acquisition Costs PolicyAcquisitionCosts	155173000	USD
	sigi	Policy Acquisition Costs PolicyAcquisitionCosts	304439000	USD
CY2015Q2	sigi	Policy Acquisition Costs PolicyAcquisitionCosts	169770000	USD
	sigi	Policy Acquisition Costs PolicyAcquisitionCosts	334493000	USD
CY2015Q2	sigi	Securities Pledged As Collateral For Reinsurance Obligations SecuritiesPledgedAsCollateralForReinsuranceObligations	11700000	USD
CY2014Q2	sigi	Taxoninvestmentincome Taxoninvestmentincome	10941000	USD
	sigi	Taxoninvestmentincome Taxoninvestmentincome	22516000	USD
CY2015Q2	sigi	Taxoninvestmentincome Taxoninvestmentincome	6254000	USD
	sigi	Taxoninvestmentincome Taxoninvestmentincome	18572000	USD
CY2014Q2	sigi	Total Investment Income After Federal Income Tax TotalInvestmentIncomeAfterFederalIncomeTax	30372000	USD
	sigi	Total Investment Income After Federal Income Tax TotalInvestmentIncomeAfterFederalIncomeTax	61549000	USD
CY2015Q2	sigi	Total Investment Income After Federal Income Tax TotalInvestmentIncomeAfterFederalIncomeTax	22556000	USD
	sigi	Total Investment Income After Federal Income Tax TotalInvestmentIncomeAfterFederalIncomeTax	56038000	USD
CY2014Q2	sigi	Total Investment Revenues TotalInvestmentRevenues	41313000	USD
	sigi	Total Investment Revenues TotalInvestmentRevenues	84065000	USD
CY2015Q2	sigi	Total Investment Revenues TotalInvestmentRevenues	28810000	USD
	sigi	Total Investment Revenues TotalInvestmentRevenues	74610000	USD
CY2014Q2	sigi	Total Unrealized Gains Losses On Investment Securities Gross TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross	40362000	USD
	sigi	Total Unrealized Gains Losses On Investment Securities Gross TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross	65641000	USD
CY2015Q2	sigi	Total Unrealized Gains Losses On Investment Securities Gross TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross	-57007000	USD
	sigi	Total Unrealized Gains Losses On Investment Securities Gross TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross	-52829000	USD
CY2014Q2	sigi	Total Unrealized Gains Losses On Investment Securities Tax TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax	14127000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	8170000	USD
	sigi	Total Unrealized Gains Losses On Investment Securities Tax TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax	22975000	USD
CY2015Q2	sigi	Total Unrealized Gains Losses On Investment Securities Tax TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax	-19952000	USD
	sigi	Total Unrealized Gains Losses On Investment Securities Tax TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax	-18490000	USD
CY2014Q2	sigi	Total Unrealized Gains Losseson Investment Securities TotalUnrealizedGainsLossesonInvestmentSecurities	-26235000	USD
	sigi	Total Unrealized Gains Losseson Investment Securities TotalUnrealizedGainsLossesonInvestmentSecurities	-42666000	USD
CY2015Q2	sigi	Total Unrealized Gains Losseson Investment Securities TotalUnrealizedGainsLossesonInvestmentSecurities	37055000	USD
	sigi	Total Unrealized Gains Losseson Investment Securities TotalUnrealizedGainsLossesonInvestmentSecurities	34339000	USD
CY2014Q4	sigi	Unrealized Unrecognized Loss UnrealizedUnrecognizedLoss	10596000	USD
CY2015Q2	sigi	Unrealized Unrecognized Loss UnrealizedUnrecognizedLoss	20483000	USD
CY2014Q4	us-gaap	Accrued Income Taxes AccruedIncomeTaxes	3921000	USD
CY2015Q2	us-gaap	Accrued Income Taxes AccruedIncomeTaxes	13562000	USD
CY2014Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	38901000	USD
CY2015Q2	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	38488000	USD
CY2014Q4	us-gaap	Accrued Salaries Current And Noncurrent AccruedSalariesCurrentAndNoncurrent	158382000	USD
CY2015Q2	us-gaap	Accrued Salaries Current And Noncurrent AccruedSalariesCurrentAndNoncurrent	140211000	USD
CY2014Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	172183000	USD
CY2015Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	180146000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	19788000	USD
CY2015Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-12329000	USD
CY2014Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	305385000	USD
CY2015Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	317295000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	25357000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	92121000	USD
CY2014Q4	us-gaap	Assets Assets	6581550000	USD
CY2015Q2	us-gaap	Assets Assets	6784313000	USD
CY2015Q2	us-gaap	Assets Held By Insurance Regulators AssetsHeldByInsuranceRegulators	24700000	USD
CY2014Q2	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	10385000	USD
	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	20570000	USD
CY2015Q2	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	5093000	USD
	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	11001000	USD
CY2014Q2	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	5837000	USD
	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	13687000	USD
CY2015Q2	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	4960000	USD
	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	11041000	USD
CY2014Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	3975786000	USD
CY2015Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	4133223000	USD
CY2014Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	159011000	USD
CY2015Q2	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	218138000	USD
CY2014Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	4257522000	USD
CY2015Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	4421701000	USD
CY2014Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	-133303000	USD
CY2015Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	-90813000	USD
CY2014Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	-10578000	USD
CY2015Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	-20473000	USD
CY2014Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	4134797000	USD
CY2015Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	4351361000	USD
CY2015Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	3356000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2408000	USD
CY2015Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	17117000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	466387000	USD
CY2015Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1251763000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	442058000	USD
CY2015Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	148571000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	1504185000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	2146816000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	94355000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	447462000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	4066122000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	4192818000	USD
CY2014Q4	us-gaap	Available For Sale Securities Equity Securities AvailableForSaleSecuritiesEquitySecurities	191400000	USD
CY2015Q2	us-gaap	Available For Sale Securities Equity Securities AvailableForSaleSecuritiesEquitySecurities	228883000	USD
CY2014Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	467328000	USD
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	951315000	USD
CY2015Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	475208000	USD
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	942810000	USD
	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	2124000	USD
	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	3478000	USD
CY2013Q4	us-gaap	Cash Cash	193000	USD
CY2014Q2	us-gaap	Cash Cash	1547000	USD
CY2014Q4	us-gaap	Cash Cash	23959000	USD
CY2015Q2	us-gaap	Cash Cash	368000	USD
	us-gaap	Cash Period Increase Decrease CashPeriodIncreaseDecrease	1354000	USD
	us-gaap	Cash Period Increase Decrease CashPeriodIncreaseDecrease	-23591000	USD
CY2014Q2	us-gaap	Ceded Premiums Earned CededPremiumsEarned	91673000	USD
	us-gaap	Ceded Premiums Earned CededPremiumsEarned	182063000	USD
CY2015Q2	us-gaap	Ceded Premiums Earned CededPremiumsEarned	90891000	USD
	us-gaap	Ceded Premiums Earned CededPremiumsEarned	182718000	USD
CY2014Q2	us-gaap	Ceded Premiums Written CededPremiumsWritten	98328000	USD
	us-gaap	Ceded Premiums Written CededPremiumsWritten	187319000	USD
CY2015Q2	us-gaap	Ceded Premiums Written CededPremiumsWritten	94235000	USD
	us-gaap	Ceded Premiums Written CededPremiumsWritten	181011000	USD
CY2014Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.13
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.26
CY2015Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.14
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.28
CY2014Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2
CY2015Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2
CY2014Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	360000000	shares
CY2015Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	360000000	shares
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	884000	USD
CY2014Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	99947933	shares
CY2015Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	100585852	shares
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	199896000	USD
CY2015Q2	us-gaap	Common Stock Value CommonStockValue	201172000	USD
CY2014Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	55824000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	90476000	USD
CY2015Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-2176000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	41359000	USD
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	334000	USD
CY2014Q2	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	8781000	USD
	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	15319000	USD
CY2015Q2	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7733000	USD
	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	19987000	USD
CY2014Q2	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1399000	USD
	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1971000	USD
CY2015Q2	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5264000	USD
	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	9592000	USD
CY2014Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	185608000	USD
CY2015Q2	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	203224000	USD
	us-gaap	Deferred Policy Acquisition Costs Period Increase Decrease DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease	9106000	USD
	us-gaap	Deferred Policy Acquisition Costs Period Increase Decrease DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease	17616000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	98449000	USD
CY2015Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	106152000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	18912000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	29085000	USD
CY2014Q2	us-gaap	Direct Premiums Earned DirectPremiumsEarned	544913000	USD
	us-gaap	Direct Premiums Earned DirectPremiumsEarned	1081613000	USD
CY2015Q2	us-gaap	Direct Premiums Earned DirectPremiumsEarned	576107000	USD
	us-gaap	Direct Premiums Earned DirectPremiumsEarned	1138149000	USD
CY2014Q2	us-gaap	Direct Premiums Written DirectPremiumsWritten	572314000	USD
	us-gaap	Direct Premiums Written DirectPremiumsWritten	1130205000	USD
CY2015Q2	us-gaap	Direct Premiums Written DirectPremiumsWritten	621408000	USD
	us-gaap	Direct Premiums Written DirectPremiumsWritten	1220191000	USD
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.52
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
CY2015Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.29
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.58
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.27
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	955000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1549000	USD
CY2015Q2	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	63700000	USD
CY2015Q2	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	60000000	USD
CY2015Q2	us-gaap	Goodwill Goodwill	7849000	USD
CY2014Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	318137000	USD
CY2014Q2	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	4958000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	13139000	USD
CY2015Q2	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	1031000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	22008000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	7849000	USD
CY2015Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	247859000	USD
CY2014Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	-15824000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	-11846000	USD
CY2014Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	0	USD
CY2015Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	-3000	USD
CY2014Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	317179000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	247346000	USD
CY2014Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	455000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	280000	USD
CY2014Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	3000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2000	USD
CY2014Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	196000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	180000	USD
CY2014Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	2235000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	1540000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	12922000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	10890000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	158092000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	149865000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	88688000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	87104000	USD
CY2014Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	333961000	USD
CY2015Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	259702000	USD
CY2014Q2	us-gaap	Impairment Of Investments ImpairmentOfInvestments	419000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	1382000	USD
CY2015Q2	us-gaap	Impairment Of Investments ImpairmentOfInvestments	4451000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	6545000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	39521000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	64605000	USD
CY2015Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	46765000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	103055000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	138000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-2117000	USD
CY2014Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10180000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17290000	USD
CY2015Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12997000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29579000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3699000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8500000	USD
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-26557000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-29999000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	64747000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	88813000	USD
	us-gaap	Increase Decrease In Property And Casualty Insurance Liabilities IncreaseDecreaseInPropertyAndCasualtyInsuranceLiabilities	-16872000	USD
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-18171000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	12634000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	19232000	USD
	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	361000	USD
	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-395000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	4881000	USD
	us-gaap	Increase Decrease In Property And Casualty Insurance Liabilities IncreaseDecreaseInPropertyAndCasualtyInsuranceLiabilities	-5091000	USD
CY2014Q2	us-gaap	Incurred Claims Property Casualty And Liability IncurredClaimsPropertyCasualtyAndLiability	297795000	USD
	us-gaap	Incurred Claims Property Casualty And Liability IncurredClaimsPropertyCasualtyAndLiability	618341000	USD
CY2015Q2	us-gaap	Incurred Claims Property Casualty And Liability IncurredClaimsPropertyCasualtyAndLiability	291561000	USD
	us-gaap	Incurred Claims Property Casualty And Liability IncurredClaimsPropertyCasualtyAndLiability	576560000	USD
CY2014Q2	us-gaap	Interest Expense Debt InterestExpenseDebt	5425000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	10986000	USD
CY2015Q2	us-gaap	Interest Expense Debt InterestExpenseDebt	5490000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	10969000	USD
	us-gaap	Interest Paid InterestPaid	11113000	USD
	us-gaap	Interest Paid InterestPaid	10947000	USD
CY2014Q4	us-gaap	Investments Investments	4806834000	USD
CY2015Q2	us-gaap	Investments Investments	4923329000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	5305964000	USD
CY2015Q2	us-gaap	Liabilities Liabilities	5474000000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6581550000	USD
CY2015Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6784313000	USD
CY2014Q4	us-gaap	Liability For Claims And Claims Adjustment Expense Property Casualty Liability LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability	3477870000	USD
CY2015Q2	us-gaap	Liability For Claims And Claims Adjustment Expense Property Casualty Liability LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability	3535433000	USD
CY2014Q4	us-gaap	Long Term Debt LongTermDebt	379297000	USD
CY2015Q2	us-gaap	Long Term Debt LongTermDebt	394305000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-13608000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-539000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-57710000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-188649000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	72672000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	165597000	USD
CY2014Q2	us-gaap	Net Income Loss NetIncomeLoss	29341000	USD
	us-gaap	Net Income Loss NetIncomeLoss	47315000	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	33768000	USD
	us-gaap	Net Income Loss NetIncomeLoss	73476000	USD
CY2014Q2	us-gaap	Net Investment Income NetInvestmentIncome	36774000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	72308000	USD
CY2015Q2	us-gaap	Net Investment Income NetInvestmentIncome	32230000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	59147000	USD
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4
CY2014Q4	us-gaap	Other Assets OtherAssets	73215000	USD
CY2015Q2	us-gaap	Other Assets OtherAssets	77342000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	0	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	40743000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	66402000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-55298000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-49411000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	26483000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	43161000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-35944000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-32117000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-381000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-761000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-1709000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-3418000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-248000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-495000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1111000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-2222000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-133000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-266000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-598000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-1196000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	5008000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	12237000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-3422000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	16473000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	3255000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	7954000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-2225000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	10707000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	1753000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	4283000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-1197000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	5766000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-381000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-761000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-1709000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-3418000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-248000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-495000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-1111000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-2222000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-133000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-266000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-598000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-1196000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	14260000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	23241000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-19354000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-17294000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	45122000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	78086000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-60244000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-36267000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	29329000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	50755000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-39160000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-23574000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	15793000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	27331000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-21084000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-12693000	USD
CY2014Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	8935000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	17549000	USD
CY2015Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	8387000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	20788000	USD
CY2014Q2	us-gaap	Other General Expense OtherGeneralExpense	6451000	USD
	us-gaap	Other General Expense OtherGeneralExpense	13543000	USD
CY2015Q2	us-gaap	Other General Expense OtherGeneralExpense	5679000	USD
	us-gaap	Other General Expense OtherGeneralExpense	15731000	USD
CY2014Q2	us-gaap	Other Income OtherIncome	1911000	USD
	us-gaap	Other Income OtherIncome	11735000	USD
CY2015Q2	us-gaap	Other Income OtherIncome	2854000	USD
	us-gaap	Other Income OtherIncome	4823000	USD
CY2014Q4	us-gaap	Other Investments OtherInvestments	99203000	USD
CY2015Q2	us-gaap	Other Investments OtherInvestments	85420000	USD
CY2014Q4	us-gaap	Other Liabilities OtherLiabilities	190675000	USD
CY2015Q2	us-gaap	Other Liabilities OtherLiabilities	212588000	USD
CY2014Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	131972000	USD
CY2015Q2	us-gaap	Other Short Term Investments OtherShortTermInvestments	168349000	USD
CY2014Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2015Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2014Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2015Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2013Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	7488000	USD
CY2014Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	7488000	USD
CY2014Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	5534000	USD
CY2014Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	5444000	USD
CY2015Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	1013000	USD
CY2015Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	1013000	USD
CY2014Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	0	USD
CY2015Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	0	USD
CY2014Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	0	USD
CY2015Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	0	USD
CY2014Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	1954000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	1954000	USD
CY2015Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	4431000	USD
CY2014Q2	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
	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
CY2015Q2	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
	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
CY2014Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	419000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	1382000	USD
CY2015Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	4451000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	6545000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	6628000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	7591000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2786000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3583000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	13914000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	15211000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	339362000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	463758000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	111886000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	177386000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	6039000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	2947000	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	764692000	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	732278000	USD
CY2014Q2	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	332707000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	691056000	USD
CY2015Q2	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	316648000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	628894000	USD
CY2014Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0
CY2014Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0
CY2015Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0
CY2014Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2014Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	547190	shares
CY2015Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2014Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2014Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2015Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2014Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2015Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2014Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2015Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2014Q2	us-gaap	Premiums Earned Net Property And Casualty PremiumsEarnedNetPropertyAndCasualty	463625000	USD
	us-gaap	Premiums Earned Net Property And Casualty PremiumsEarnedNetPropertyAndCasualty	920120000	USD
CY2015Q2	us-gaap	Premiums Earned Net Property And Casualty PremiumsEarnedNetPropertyAndCasualty	490309000	USD
	us-gaap	Premiums Earned Net Property And Casualty PremiumsEarnedNetPropertyAndCasualty	966432000	USD
CY2014Q4	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	4137000	USD
CY2015Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	4210000	USD
CY2014Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	558778000	USD
CY2015Q2	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	647591000	USD
CY2014Q2	us-gaap	Premiums Written Net PremiumsWrittenNet	479823000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	956573000	USD
CY2015Q2	us-gaap	Premiums Written Net PremiumsWrittenNet	532133000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	1050221000	USD
CY2014Q4	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	146993000	USD
CY2015Q2	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	145286000	USD
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	8000000	USD
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	7726000	USD
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	17840000	USD
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	0	USD
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	15000000	USD
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	3091000	USD
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	4037000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	222568000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	254995000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	28595000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	68704000	USD
CY2015Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	19500000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	157900000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	19557000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	22323000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	111996000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	135548000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	772455000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	695901000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	59416000	USD
CY2015Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	62182000	USD
CY2014Q2	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	4539000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	11757000	USD
CY2015Q2	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-3420000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	15463000	USD
CY2014Q2	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	7377000	USD
	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	14856000	USD
CY2015Q2	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	4228000	USD
	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	8890000	USD
CY2014Q2	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	42289000	USD
	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	87571000	USD
CY2015Q2	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	29315000	USD
	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	61224000	USD
CY2014Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	581548000	USD
CY2015Q2	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	572502000	USD
	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	954000	USD
	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	2331000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1313440000	USD
CY2015Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1370681000	USD
CY2014Q2	us-gaap	Revenues Revenues	506849000	USD
	us-gaap	Revenues Revenues	1015920000	USD
CY2015Q2	us-gaap	Revenues Revenues	521973000	USD
	us-gaap	Revenues Revenues	1045865000	USD
CY2015Q2	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	100100000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	6102000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	6049000	USD
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	29949	shares
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	26843	shares
	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	611076	shares
CY2014Q2	us-gaap	Stockholders Equity StockholdersEquity	1238075000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	1275586000	USD
CY2015Q2	us-gaap	Stockholders Equity StockholdersEquity	1310313000	USD
CY2014Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	43353181	shares
CY2015Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	43482533	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	124819	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	129352	shares
CY2014Q4	us-gaap	Treasury Stock Value TreasuryStockValue	562923000	USD
CY2015Q2	us-gaap	Treasury Stock Value TreasuryStockValue	566506000	USD
CY2014Q4	us-gaap	Unearned Premiums UnearnedPremiums	1095819000	USD
CY2015Q2	us-gaap	Unearned Premiums UnearnedPremiums	1177901000	USD

Files In Submission

Name	View Source	Status
0000230557-15-000017-index-headers.html	Edgar Link	pending
0000230557-15-000017-index.html	Edgar Link	pending
0000230557-15-000017.txt	Edgar Link	pending
0000230557-15-000017-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
sigi-20150630.xml	Edgar Link	completed
sigi-20150630.xsd	Edgar Link	pending
sigi-20150630_cal.xml	Edgar Link	unprocessable
sigi-20150630_def.xml	Edgar Link	unprocessable
sigi-20150630_lab.xml	Edgar Link	unprocessable
sigi-20150630_pre.xml	Edgar Link	unprocessable
sigi-6302015x10q.htm	Edgar Link	pending
sigi-ex11_6302015xq2.htm	Edgar Link	pending
sigi-ex311_6302015xq2.htm	Edgar Link	pending
sigi-ex312_6302015xq2.htm	Edgar Link	pending
sigi-ex321_6302015xq2.htm	Edgar Link	pending
sigi-ex322_6302015xq2.htm	Edgar Link	pending
sigi-ex32_6302015xq2.htm	Edgar Link	pending

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$SIGI
Selective Insurance Group Inc Stock $sigi

2015 Q3 Form 10-Q Financial Statement

#000023055715000017 Filed on July 30, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SIGI Selective Insurance Group Inc Stock $sigi

2015 Q3 Form 10-Q Financial Statement

#000023055715000017 Filed on July 30, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SIGI
Selective Insurance Group Inc Stock $sigi