2018 Q1 Form 10-Q Financial Statement
#000077686718000006 Filed on May 02, 2018
Income Statement
Concept | 2018 Q1 | 2017 Q1 |
---|---|---|
Revenue | $42.10M | $88.80M |
YoY Change | -52.59% | 53.1% |
Cost Of Revenue | $58.10M | $28.80M |
YoY Change | 101.74% | -82.12% |
Gross Profit | -$16.00M | $60.00M |
YoY Change | -126.67% | -158.2% |
Gross Profit Margin | -38.0% | 67.57% |
Selling, General & Admin | $103.1M | $87.10M |
YoY Change | 18.37% | 8.33% |
% of Gross Profit | 145.17% | |
Research & Development | ||
YoY Change | ||
% of Gross Profit | ||
Depreciation & Amortization | $4.800M | $5.800M |
YoY Change | -17.24% | -49.12% |
% of Gross Profit | 9.67% | |
Operating Expenses | $107.5M | $92.00M |
YoY Change | 16.85% | 5.38% |
Operating Profit | -$123.5M | -$32.00M |
YoY Change | 285.94% | -83.19% |
Interest Expense | -$600.0K | -$400.0K |
YoY Change | 50.0% | -66.67% |
% of Operating Profit | ||
Other Income/Expense, Net | ||
YoY Change | ||
Pretax Income | -$66.00M | -$3.600M |
YoY Change | 1733.33% | -89.19% |
Income Tax | $700.0K | -$300.0K |
% Of Pretax Income | ||
Net Earnings | -$66.60M | $28.00M |
YoY Change | -337.86% | 45.08% |
Net Earnings / Revenue | -158.19% | 31.53% |
Basic Earnings Per Share | -$12.82 | $6.34 |
Diluted Earnings Per Share | -$12.82 | $6.34 |
COMMON SHARES | ||
Basic Shares Outstanding | 3.710M shares | 4.512M shares |
Diluted Shares Outstanding | 3.710M shares | 4.512M shares |
Balance Sheet
Concept | 2018 Q1 | 2017 Q1 |
---|---|---|
SHORT-TERM ASSETS | ||
Cash & Short-Term Investments | ||
YoY Change | ||
Cash & Equivalents | $120.2M | $45.40M |
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 | ||
YoY Change | ||
Goodwill | $25.90M | $25.90M |
YoY Change | 0.0% | 7.47% |
Intangibles | $21.30M | |
YoY Change | -33.85% | |
Long-Term Investments | $3.296B | $5.339B |
YoY Change | -38.27% | 46.68% |
Other Assets | $3.000M | $126.0M |
YoY Change | -97.62% | -97.65% |
Total Long-Term Assets | ||
YoY Change | ||
TOTAL ASSETS | ||
Total Short-Term Assets | ||
Total Long-Term Assets | ||
Total Assets | $3.587B | $6.490B |
YoY Change | -44.73% | -37.54% |
SHORT-TERM LIABILITIES | ||
YoY Change | ||
Accounts Payable | ||
YoY Change | ||
Accrued Expenses | $33.00M | $83.00M |
YoY Change | -60.24% | -27.19% |
Deferred Revenue | ||
YoY Change | ||
Short-Term Debt | $0.00 | $0.00 |
YoY Change | ||
Long-Term Debt Due | ||
YoY Change | ||
Total Short-Term Liabilities | $107.0M | $100.0M |
YoY Change | 7.0% | -17.36% |
LONG-TERM LIABILITIES | ||
Long-Term Debt | $22.00M | $285.0M |
YoY Change | -92.28% | -46.53% |
Other Long-Term Liabilities | $23.00M | $179.0M |
YoY Change | -87.15% | -94.66% |
Total Long-Term Liabilities | $45.00M | $464.0M |
YoY Change | -90.3% | -88.05% |
TOTAL LIABILITIES | ||
Total Short-Term Liabilities | $107.0M | $100.0M |
Total Long-Term Liabilities | $45.00M | $464.0M |
Total Liabilities | $291.2M | $2.760B |
YoY Change | -89.45% | -55.16% |
SHAREHOLDERS EQUITY | ||
Retained Earnings | $2.765B | $2.796B |
YoY Change | -1.11% | -5.53% |
Common Stock | $675.3M | $807.8M |
YoY Change | -16.4% | -13.96% |
Preferred Stock | ||
YoY Change | ||
Treasury Stock (at cost) | ||
YoY Change | ||
Treasury Stock Shares | ||
Shareholders Equity | $3.439B | $3.599B |
YoY Change | ||
Total Liabilities & Shareholders Equity | $3.587B | $6.490B |
YoY Change | -44.73% | -37.54% |
Cashflow Statement
Concept | 2018 Q1 | 2017 Q1 |
---|---|---|
OPERATING ACTIVITIES | ||
Net Income | -$66.60M | $28.00M |
YoY Change | -337.86% | 45.08% |
Depreciation, Depletion And Amortization | $4.800M | $5.800M |
YoY Change | -17.24% | -49.12% |
Cash From Operating Activities | -$44.70M | -$56.10M |
YoY Change | -20.32% | -35.22% |
INVESTING ACTIVITIES | ||
Capital Expenditures | -$100.0K | |
YoY Change | ||
Acquisitions | ||
YoY Change | ||
Other Investing Activities | $100.0K | $0.00 |
YoY Change | -100.0% | |
Cash From Investing Activities | $77.40M | $39.30M |
YoY Change | 96.95% | -77.52% |
FINANCING ACTIVITIES | ||
Cash Dividend Paid | ||
YoY Change | ||
Common Stock Issuance & Retirement, Net | $0.00 | |
YoY Change | -100.0% | |
Debt Paid & Issued, Net | ||
YoY Change | ||
Cash From Financing Activities | -$9.600M | -$8.900M |
YoY Change | 7.87% | -91.49% |
NET CHANGE | ||
Cash From Operating Activities | -$44.70M | -$56.10M |
Cash From Investing Activities | $77.40M | $39.30M |
Cash From Financing Activities | -$9.600M | -$8.900M |
Net Change In Cash | $23.10M | -$25.70M |
YoY Change | -189.88% | 56.71% |
FREE CASH FLOW | ||
Cash From Operating Activities | -$44.70M | -$56.10M |
Capital Expenditures | -$100.0K | |
Free Cash Flow | -$44.60M | |
YoY Change |
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2018Q1 | dei |
Amendment Flag
AmendmentFlag
|
false | |
CY2018Q1 | dei |
Current Fiscal Year End Date
CurrentFiscalYearEndDate
|
--12-31 | |
CY2018Q1 | dei |
Document Fiscal Period Focus
DocumentFiscalPeriodFocus
|
Q1 | |
CY2018Q1 | dei |
Document Fiscal Year Focus
DocumentFiscalYearFocus
|
2018 | |
CY2018Q1 | dei |
Document Period End Date
DocumentPeriodEndDate
|
2018-03-31 | |
CY2018Q1 | dei |
Document Type
DocumentType
|
10-Q | |
CY2018Q1 | dei |
Entity Central Index Key
EntityCentralIndexKey
|
0000776867 | |
CY2018Q2 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
3753405 | shares |
CY2018Q1 | dei |
Entity Current Reporting Status
EntityCurrentReportingStatus
|
Yes | |
CY2018Q1 | dei |
Entity Filer Category
EntityFilerCategory
|
Large Accelerated Filer | |
CY2018Q1 | dei |
Entity Registrant Name
EntityRegistrantName
|
WHITE MOUNTAINS INSURANCE GROUP LTD | |
CY2017Q1 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
2500000 | USD |
CY2018Q1 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
1200000 | USD |
CY2017Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
|
-1300000 | USD |
CY2018Q1 | us-gaap |
Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
|
-1300000 | USD |
CY2017Q1 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
803200000 | USD |
CY2017Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
666800000 | USD |
CY2018Q1 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
671500000 | USD |
CY2017Q1 | us-gaap |
Advertising Revenue
AdvertisingRevenue
|
33800000 | USD |
CY2018Q1 | us-gaap |
Advertising Revenue
AdvertisingRevenue
|
71000000 | USD |
CY2017Q1 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
2300000 | USD |
CY2018Q1 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
2900000 | USD |
CY2017Q1 | us-gaap |
Assets
Assets
|
6490400000 | USD |
CY2017Q4 | us-gaap |
Assets
Assets
|
3659200000 | USD |
CY2018Q1 | us-gaap |
Assets
Assets
|
3587000000 | USD |
CY2017Q1 | us-gaap |
Benefits Losses And Expenses
BenefitsLossesAndExpenses
|
92400000 | USD |
CY2018Q1 | us-gaap |
Benefits Losses And Expenses
BenefitsLossesAndExpenses
|
108100000 | USD |
CY2016Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
80200000 | USD |
CY2017Q1 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
45400000 | USD |
CY2017Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
97100000 | USD |
CY2018Q1 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
120200000 | USD |
CY2017Q1 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-35700000 | USD |
CY2018Q1 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
23100000 | USD |
CY2017Q1 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.00 | |
CY2018Q1 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.00 | |
CY2017Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
1.00 | |
CY2018Q1 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
1.00 | |
CY2017Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
50000000 | shares |
CY2018Q1 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
50000000 | shares |
CY2017Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
3750171 | shares |
CY2018Q1 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
3753405 | shares |
CY2017Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
3750171 | shares |
CY2018Q1 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
3753405 | shares |
CY2017Q1 | us-gaap |
Common Stock Value
CommonStockValue
|
4600000 | USD |
CY2017Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
3800000 | USD |
CY2018Q1 | us-gaap |
Common Stock Value
CommonStockValue
|
3800000 | USD |
CY2017Q1 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
29200000 | USD |
CY2018Q1 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-48000000 | USD |
CY2017Q1 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
0 | USD |
CY2018Q1 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
0 | USD |
CY2017Q1 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
29200000 | USD |
CY2018Q1 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
-48000000 | USD |
CY2017Q1 | us-gaap |
Cost Of Services
CostOfServices
|
28800000 | USD |
CY2018Q1 | us-gaap |
Cost Of Services
CostOfServices
|
58100000 | USD |
CY2017Q1 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-3000000 | USD |
CY2018Q1 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-800000 | USD |
CY2017Q1 | us-gaap |
Deferred Policy Acquisition Cost Amortization Expense
DeferredPolicyAcquisitionCostAmortizationExpense
|
1300000 | USD |
CY2018Q1 | us-gaap |
Deferred Policy Acquisition Cost Amortization Expense
DeferredPolicyAcquisitionCostAmortizationExpense
|
1400000 | USD |
CY2017Q1 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
5800000 | USD |
CY2018Q1 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
4800000 | USD |
CY2017Q1 | us-gaap |
Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax
DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
|
-1000000 | USD |
CY2017Q4 | us-gaap |
Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax
DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
|
100000 | USD |
CY2018Q1 | us-gaap |
Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax
DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
|
100000 | USD |
CY2017Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
6.34 | |
CY2018Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-12.82 | |
CY2017Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-0.52 | |
CY2018Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-12.85 | |
CY2017Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
6.34 | |
CY2018Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-12.82 | |
CY2017Q1 | us-gaap |
Earnings Per Share Diluted Undistributed
EarningsPerShareDilutedUndistributed
|
-1.52 | |
CY2018Q1 | us-gaap |
Earnings Per Share Diluted Undistributed
EarningsPerShareDilutedUndistributed
|
-13.85 | |
CY2017Q1 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
-0.083 | |
CY2018Q1 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
-0.011 | |
CY2017Q1 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
CY2018Q1 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2017Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
|
498900000 | USD |
CY2018Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
|
692600000 | USD |
CY2017Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
|
466800000 | USD |
CY2018Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
|
1321800000 | USD |
CY2017Q4 | us-gaap |
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized
FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognized
|
136800000 | USD |
CY2018Q1 | us-gaap |
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized
FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognized
|
140200000 | USD |
CY2017Q1 | us-gaap |
Foreign Currency Transaction Gain Loss Realized
ForeignCurrencyTransactionGainLossRealized
|
200000 | USD |
CY2018Q1 | us-gaap |
Foreign Currency Transaction Gain Loss Realized
ForeignCurrencyTransactionGainLossRealized
|
11000000 | USD |
CY2017Q1 | us-gaap |
Foreign Currency Transaction Gain Loss Unrealized
ForeignCurrencyTransactionGainLossUnrealized
|
-500000 | USD |
CY2018Q1 | us-gaap |
Foreign Currency Transaction Gain Loss Unrealized
ForeignCurrencyTransactionGainLossUnrealized
|
-10700000 | USD |
CY2017Q1 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
36300000 | USD |
CY2018Q1 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
-53700000 | USD |
CY2017Q1 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
60700000 | USD |
CY2018Q1 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
47900000 | USD |
CY2016Q4 | us-gaap |
Goodwill
Goodwill
|
25900000 | USD |
CY2017Q1 | us-gaap |
Goodwill
Goodwill
|
25900000 | USD |
CY2017Q4 | us-gaap |
Goodwill
Goodwill
|
25900000 | USD |
CY2018Q1 | us-gaap |
Goodwill
Goodwill
|
25900000 | USD |
CY2017Q1 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
-2300000 | USD |
CY2018Q1 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
-48100000 | USD |
CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
-3600000 | USD |
CY2018Q1 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
-66000000 | USD |
CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
-3300000 | USD |
CY2018Q1 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
-66700000 | USD |
CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
6.34 | |
CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-0.52 | |
CY2018Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-12.85 | |
CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-0.52 | |
CY2018Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-12.85 | |
CY2017Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
32300000 | USD |
CY2018Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
CY2017Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
31300000 | USD |
CY2018Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
100000 | USD |
CY2017Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
6.86 | |
CY2018Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
0.03 | |
CY2017Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
6.86 | |
CY2018Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.03 | |
CY2017Q1 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-300000 | USD |
CY2018Q1 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
700000 | USD |
CY2017Q1 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
0 | USD |
CY2018Q1 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-200000 | USD |
CY2017Q1 | us-gaap |
Increase Decrease In Deferred Policy Acquisition Costs
IncreaseDecreaseInDeferredPolicyAcquisitionCosts
|
1300000 | USD |
CY2018Q1 | us-gaap |
Increase Decrease In Deferred Policy Acquisition Costs
IncreaseDecreaseInDeferredPolicyAcquisitionCosts
|
1100000 | USD |
CY2017Q1 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
35900000 | USD |
CY2018Q1 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
41300000 | USD |
CY2017Q1 | us-gaap |
Increase Decrease In Unearned Premiums
IncreaseDecreaseInUnearnedPremiums
|
17400000 | USD |
CY2018Q1 | us-gaap |
Increase Decrease In Unearned Premiums
IncreaseDecreaseInUnearnedPremiums
|
3400000 | USD |
CY2016Q4 | us-gaap |
Intangible Assets Net Including Goodwill
IntangibleAssetsNetIncludingGoodwill
|
45200000 | USD |
CY2017Q1 | us-gaap |
Intangible Assets Net Including Goodwill
IntangibleAssetsNetIncludingGoodwill
|
42900000 | USD |
CY2017Q4 | us-gaap |
Intangible Assets Net Including Goodwill
IntangibleAssetsNetIncludingGoodwill
|
62100000 | USD |
CY2018Q1 | us-gaap |
Intangible Assets Net Including Goodwill
IntangibleAssetsNetIncludingGoodwill
|
59200000 | USD |
CY2017Q1 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
13300000 | USD |
CY2018Q1 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
20400000 | USD |
CY2017Q1 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
400000 | USD |
CY2018Q1 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
600000 | USD |
CY2017Q1 | us-gaap |
Interest Paid
InterestPaid
|
200000 | USD |
CY2018Q1 | us-gaap |
Interest Paid
InterestPaid
|
300000 | USD |
CY2017Q1 | us-gaap |
Investment Income Investment Expense
InvestmentIncomeInvestmentExpense
|
500000 | USD |
CY2018Q1 | us-gaap |
Investment Income Investment Expense
InvestmentIncomeInvestmentExpense
|
700000 | USD |
CY2016Q4 | us-gaap |
Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
|
2547300000 | USD |
CY2017Q1 | us-gaap |
Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
|
2610800000 | USD |
CY2017Q4 | us-gaap |
Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
|
3208300000 | USD |
CY2018Q1 | us-gaap |
Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
|
2532500000 | USD |
CY2017Q1 | us-gaap |
Liabilities
Liabilities
|
2759600000 | USD |
CY2017Q4 | us-gaap |
Liabilities
Liabilities
|
298400000 | USD |
CY2018Q1 | us-gaap |
Liabilities
Liabilities
|
291200000 | USD |
CY2017Q1 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
6490400000 | USD |
CY2017Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
3659200000 | USD |
CY2018Q1 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
3587000000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
23800000 | USD |
CY2018Q1 | us-gaap |
Long Term Debt
LongTermDebt
|
21500000 | USD |
CY2017Q1 | us-gaap |
Minority Interest
MinorityInterest
|
131500000 | USD |
CY2017Q4 | us-gaap |
Minority Interest
MinorityInterest
|
-131700000 | USD |
CY2018Q1 | us-gaap |
Minority Interest
MinorityInterest
|
-143200000 | USD |
CY2017Q1 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-8900000 | USD |
CY2018Q1 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-9600000 | USD |
CY2017Q1 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
12100000 | USD |
CY2018Q1 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
-9600000 | USD |
CY2017Q1 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
39300000 | USD |
CY2018Q1 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
77400000 | USD |
CY2017Q1 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
7000000 | USD |
CY2018Q1 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
77500000 | USD |
CY2017Q1 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-56100000 | USD |
CY2018Q1 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-44700000 | USD |
CY2017Q1 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
-54800000 | USD |
CY2018Q1 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
-44800000 | USD |
CY2017Q1 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
-1000000 | USD |
CY2018Q1 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
-18600000 | USD |
CY2017Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
29000000 | USD |
CY2018Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-48000000 | USD |
CY2017Q1 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
12800000 | USD |
CY2018Q1 | us-gaap |
Net Investment Income
NetInvestmentIncome
|
19700000 | USD |
CY2017Q1 | us-gaap |
Net Realized Or Unrealized Gain Loss On Trading Securities
NetRealizedOrUnrealizedGainLossOnTradingSecurities
|
36300000 | USD |
CY2018Q1 | us-gaap |
Net Realized Or Unrealized Gain Loss On Trading Securities
NetRealizedOrUnrealizedGainLossOnTradingSecurities
|
-53700000 | USD |
CY2017Q1 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
100000 | USD |
CY2018Q1 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
0 | USD |
CY2017Q1 | us-gaap |
Other Comprehensive Income Other Net Of Tax
OtherComprehensiveIncomeOtherNetOfTax
|
200000 | USD |
CY2017Q1 | us-gaap |
Other Income
OtherIncome
|
2900000 | USD |
CY2018Q1 | us-gaap |
Other Income
OtherIncome
|
2100000 | USD |
CY2017Q1 | us-gaap |
Other Underwriting Expense
OtherUnderwritingExpense
|
100000 | USD |
CY2018Q1 | us-gaap |
Other Underwriting Expense
OtherUnderwritingExpense
|
100000 | USD |
CY2017Q1 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
0 | USD |
CY2018Q1 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
100000 | USD |
CY2017Q1 | us-gaap |
Payments For Proceeds From Short Term Investments
PaymentsForProceedsFromShortTermInvestments
|
-36100000 | USD |
CY2018Q1 | us-gaap |
Premiums Earned Net
PremiumsEarnedNet
|
3000000 | USD |
CY2017Q1 | us-gaap |
Premiums Earned Net
PremiumsEarnedNet
|
3000000 | USD |
CY2018Q1 | us-gaap |
Payments For Proceeds From Short Term Investments
PaymentsForProceedsFromShortTermInvestments
|
587500000 | USD |
CY2017Q1 | us-gaap |
Payments Of Capital Distribution
PaymentsOfCapitalDistribution
|
300000 | USD |
CY2018Q1 | us-gaap |
Payments Of Capital Distribution
PaymentsOfCapitalDistribution
|
0 | USD |
CY2017Q1 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
4600000 | USD |
CY2018Q1 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
3800000 | USD |
CY2017Q1 | us-gaap |
Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
|
21600000 | USD |
CY2018Q1 | us-gaap |
Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
|
46000000 | USD |
CY2017Q1 | us-gaap |
Policyholder Benefits And Claims Incurred Net
PolicyholderBenefitsAndClaimsIncurredNet
|
1100000 | USD |
CY2017Q1 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-6500000 | USD |
CY2018Q1 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-8400000 | USD |
CY2017Q1 | us-gaap |
Proceeds From Sale And Maturity Of Other Investments
ProceedsFromSaleAndMaturityOfOtherInvestments
|
3200000 | USD |
CY2018Q1 | us-gaap |
Proceeds From Sale And Maturity Of Other Investments
ProceedsFromSaleAndMaturityOfOtherInvestments
|
-6900000 | USD |
CY2017Q1 | us-gaap |
Profit Loss
ProfitLoss
|
28000000 | USD |
CY2018Q1 | us-gaap |
Profit Loss
ProfitLoss
|
-66600000 | USD |
CY2017Q1 | us-gaap |
Repayments Of Debt
RepaymentsOfDebt
|
1200000 | USD |
CY2018Q1 | us-gaap |
Repayments Of Debt
RepaymentsOfDebt
|
2300000 | USD |
CY2016Q4 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
0 | USD |
CY2017Q1 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
0 | USD |
CY2017Q4 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
0 | USD |
CY2018Q1 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
0 | USD |
CY2017Q1 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
2795900000 | USD |
CY2017Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
2823200000 | USD |
CY2018Q1 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
2765000000 | USD |
CY2017Q1 | us-gaap |
Revenues
Revenues
|
88800000 | USD |
CY2018Q1 | us-gaap |
Revenues
Revenues
|
42100000 | USD |
CY2016Q4 | us-gaap |
Shares Issued Price Per Share
SharesIssuedPricePerShare
|
742 | |
CY2017Q1 | us-gaap |
Stockholders Equity
StockholdersEquity
|
3599300000 | USD |
CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
3492500000 | USD |
CY2018Q1 | us-gaap |
Stockholders Equity
StockholdersEquity
|
3439000000 | USD |
CY2017Q1 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
3730800000 | USD |
CY2017Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
3360800000 | USD |
CY2018Q1 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
3295800000 | USD |
CY2017Q1 | us-gaap |
Trading Securities Realized Gain Loss
TradingSecuritiesRealizedGainLoss
|
400000 | USD |
CY2018Q1 | us-gaap |
Trading Securities Realized Gain Loss
TradingSecuritiesRealizedGainLoss
|
-16100000 | USD |
CY2017Q1 | us-gaap |
Trading Securities Unrealized Holding Gain Loss
TradingSecuritiesUnrealizedHoldingGainLoss
|
36200000 | USD |
CY2018Q1 | us-gaap |
Trading Securities Unrealized Holding Gain Loss
TradingSecuritiesUnrealizedHoldingGainLoss
|
-37900000 | USD |
CY2017Q1 | us-gaap |
Undistributed Earnings
UndistributedEarnings
|
-6800000 | USD |
CY2018Q1 | us-gaap |
Undistributed Earnings
UndistributedEarnings
|
-51400000 | USD |
CY2017Q1 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
4564600 | shares |
CY2018Q1 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
3746100 | shares |
CY2017Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
4512100 | shares |
CY2018Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
3710200 | shares |
CY2017Q1 | us-gaap |
Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
|
4564600 | shares |
CY2018Q1 | us-gaap |
Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
|
3746100 | shares |
CY2017Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
4512100 | shares |
CY2018Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
3710200 | shares |
CY2017Q1 | us-gaap |
Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
|
52500 | shares |
CY2018Q1 | us-gaap |
Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
|
35900 | shares |
CY2017Q1 | wtm |
Accumulated Other Comprehensive Income Loss Net Of Tax Other
AccumulatedOtherComprehensiveIncomeLossNetOfTaxOther
|
-4400000 | USD |
CY2017Q1 | wtm |
Aggregate Allocation To Restricted Shares Including Dividend
AggregateAllocationToRestrictedSharesIncludingDividend
|
0 | USD |
CY2018Q1 | wtm |
Aggregate Allocation To Restricted Shares Including Dividend
AggregateAllocationToRestrictedSharesIncludingDividend
|
-400000 | USD |
CY2017Q1 | wtm |
Amortizationof Restricted Sharesand Option Awards
AmortizationofRestrictedSharesandOptionAwards
|
1800000 | USD |
CY2018Q1 | wtm |
Amortizationof Restricted Sharesand Option Awards
AmortizationofRestrictedSharesandOptionAwards
|
3200000 | USD |
CY2016Q4 | wtm |
Cash Reclassified To Assets Held For Sale
CashReclassifiedToAssetsHeldForSale
|
900000 | USD |
CY2017Q1 | wtm |
Cash Reclassified To Assets Held For Sale
CashReclassifiedToAssetsHeldForSale
|
0 | USD |
CY2017Q4 | wtm |
Cash Reclassified To Assets Held For Sale
CashReclassifiedToAssetsHeldForSale
|
0 | USD |
CY2018Q1 | wtm |
Cash Reclassified To Assets Held For Sale
CashReclassifiedToAssetsHeldForSale
|
0 | USD |
CY2017Q1 | wtm |
Distributionfrom Contributionsto Discontinued Operationsfor Investing Activities
DistributionfromContributionstoDiscontinuedOperationsforInvestingActivities
|
0 | USD |
CY2018Q1 | wtm |
Distributionfrom Contributionsto Discontinued Operationsfor Investing Activities
DistributionfromContributionstoDiscontinuedOperationsforInvestingActivities
|
-100000 | USD |
CY2017Q1 | wtm |
Distributionsfromcontributionstodiscontinuedoperations
Distributionsfromcontributionstodiscontinuedoperations
|
15100000 | USD |
CY2018Q1 | wtm |
Distributionsfromcontributionstodiscontinuedoperations
Distributionsfromcontributionstodiscontinuedoperations
|
0 | USD |
CY2017Q1 | wtm |
Dividends Common Stock Cash Net Of Restricted Common Share Amounts
DividendsCommonStockCashNetOfRestrictedCommonShareAmounts
|
4500000 | USD |
CY2018Q1 | wtm |
Dividends Common Stock Cash Net Of Restricted Common Share Amounts
DividendsCommonStockCashNetOfRestrictedCommonShareAmounts
|
3700000 | USD |
CY2017Q1 | wtm |
Fair Value Assets Measured On Recurring Basis Gain Loss Included In Earnings
FairValueAssetsMeasuredOnRecurringBasisGainLossIncludedInEarnings
|
-39100000 | USD |
CY2018Q1 | wtm |
Fair Value Assets Measured On Recurring Basis Gain Loss Included In Earnings
FairValueAssetsMeasuredOnRecurringBasisGainLossIncludedInEarnings
|
45400000 | USD |
CY2017Q1 | wtm |
Fair Value Assets Measured On Recurring Basis Transfers In
FairValueAssetsMeasuredOnRecurringBasisTransfersIn
|
0 | USD |
CY2018Q1 | wtm |
Fair Value Assets Measured On Recurring Basis Transfers In
FairValueAssetsMeasuredOnRecurringBasisTransfersIn
|
0 | USD |
CY2017Q1 | wtm |
Fair Value Assets Measured On Recurring Basis Transfers Out
FairValueAssetsMeasuredOnRecurringBasisTransfersOut
|
0 | USD |
CY2018Q1 | wtm |
Fair Value Assets Measured On Recurring Basis Transfers Out
FairValueAssetsMeasuredOnRecurringBasisTransfersOut
|
0 | USD |
CY2017Q1 | wtm |
Income Loss From Continuing Operatings Excluding Portion Attributable To Noncontrolling Interest Net
IncomeLossFromContinuingOperatingsExcludingPortionAttributableToNoncontrollingInterestNet
|
-2300000 | USD |
CY2018Q1 | wtm |
Income Loss From Continuing Operatings Excluding Portion Attributable To Noncontrolling Interest Net
IncomeLossFromContinuingOperatingsExcludingPortionAttributableToNoncontrollingInterestNet
|
-47700000 | USD |
CY2017Q1 | wtm |
Increase Decrease In Unsettled Accounts Receivable And Accounts Payable
IncreaseDecreaseInUnsettledAccountsReceivableAndAccountsPayable
|
3100000 | USD |
CY2018Q1 | wtm |
Increase Decrease In Unsettled Accounts Receivable And Accounts Payable
IncreaseDecreaseInUnsettledAccountsReceivableAndAccountsPayable
|
42900000 | USD |
CY2017Q1 | wtm |
Members Capital Contribution
MembersCapitalContribution
|
-9600000 | USD |
CY2018Q1 | wtm |
Members Capital Contribution
MembersCapitalContribution
|
-4900000 | USD |
CY2017Q1 | wtm |
Net Income Loss Attributableto Parent Basicand Diluted Earnings Per Share Numerators
NetIncomeLossAttributabletoParentBasicandDilutedEarningsPerShareNumerators
|
-2300000 | USD |
CY2018Q1 | wtm |
Net Income Loss Attributableto Parent Basicand Diluted Earnings Per Share Numerators
NetIncomeLossAttributabletoParentBasicandDilutedEarningsPerShareNumerators
|
-47700000 | USD |
CY2017Q1 | wtm |
Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities Netof Tax
NetRealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesNetofTax
|
400000 | USD |
CY2018Q1 | wtm |
Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities Netof Tax
NetRealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesNetofTax
|
-5700000 | USD |
CY2017Q1 | wtm |
Net Realizedand Unrealized Gain Losson Trading Securities Netof Tax
NetRealizedandUnrealizedGainLossonTradingSecuritiesNetofTax
|
32400000 | USD |
CY2018Q1 | wtm |
Net Realizedand Unrealized Gain Losson Trading Securities Netof Tax
NetRealizedandUnrealizedGainLossonTradingSecuritiesNetofTax
|
-48000000 | USD |
CY2017Q1 | wtm |
Net Unrealized Gain Loss And Foreign Currency Gain Loss On Trading Securities Net Of Tax
NetUnrealizedGainLossAndForeignCurrencyGainLossOnTradingSecuritiesNetOfTax
|
32000000 | USD |
CY2018Q1 | wtm |
Net Unrealized Gain Loss And Foreign Currency Gain Loss On Trading Securities Net Of Tax
NetUnrealizedGainLossAndForeignCurrencyGainLossOnTradingSecuritiesNetOfTax
|
-42300000 | USD |
CY2017Q1 | wtm |
Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecurities
|
35700000 | USD |
CY2018Q1 | wtm |
Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecurities
|
-48600000 | USD |
CY2017Q1 | wtm |
Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities Tax
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesTax
|
3700000 | USD |
CY2018Q1 | wtm |
Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities Tax
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesTax
|
-6300000 | USD |
CY2017Q1 | wtm |
Other Comprehensive Income Loss Discontinued Operations Netof Tax Portion Attributableto Parent
OtherComprehensiveIncomeLossDiscontinuedOperationsNetofTaxPortionAttributabletoParent
|
100000 | USD |
CY2018Q1 | wtm |
Other Comprehensive Income Loss Discontinued Operations Netof Tax Portion Attributableto Parent
OtherComprehensiveIncomeLossDiscontinuedOperationsNetofTaxPortionAttributabletoParent
|
0 | USD |
CY2017Q1 | wtm |
Payments To Acquire Trading Common Equity Securities
PaymentsToAcquireTradingCommonEquitySecurities
|
111900000 | USD |
CY2018Q1 | wtm |
Payments To Acquire Trading Common Equity Securities
PaymentsToAcquireTradingCommonEquitySecurities
|
109400000 | USD |
CY2018Q1 | wtm |
Proceeds From Sale Of Trading Fixed Maturity And Convertible Fixed Maturity Investments
ProceedsFromSaleOfTradingFixedMaturityAndConvertibleFixedMaturityInvestments
|
1266500000 | USD |
CY2017 | wtm |
Percentage Of Investments Recorded At Fair Value
PercentageOfInvestmentsRecordedAtFairValue
|
0.94 | |
CY2018Q1 | wtm |
Percentage Of Investments Recorded At Fair Value
PercentageOfInvestmentsRecordedAtFairValue
|
0.92 | |
CY2017Q1 | wtm |
Payments To Acquire Trading Fixed Maturity And Convertible Fixed Maturity Investments
PaymentsToAcquireTradingFixedMaturityAndConvertibleFixedMaturityInvestments
|
363400000 | USD |
CY2018Q1 | wtm |
Payments To Acquire Trading Fixed Maturity And Convertible Fixed Maturity Investments
PaymentsToAcquireTradingFixedMaturityAndConvertibleFixedMaturityInvestments
|
537100000 | USD |
CY2017Q1 | wtm |
Proceeds From Maturities Of Trading Fixed Maturity And Convertible Fixed Maturity Investments
ProceedsFromMaturitiesOfTradingFixedMaturityAndConvertibleFixedMaturityInvestments
|
70200000 | USD |
CY2018Q1 | wtm |
Proceeds From Maturities Of Trading Fixed Maturity And Convertible Fixed Maturity Investments
ProceedsFromMaturitiesOfTradingFixedMaturityAndConvertibleFixedMaturityInvestments
|
40600000 | USD |
CY2017Q1 | wtm |
Proceeds From Sale Of Trading Common Equity Securities
ProceedsFromSaleOfTradingCommonEquitySecurities
|
15900000 | USD |
CY2018Q1 | wtm |
Proceeds From Sale Of Trading Common Equity Securities
ProceedsFromSaleOfTradingCommonEquitySecurities
|
14400000 | USD |
CY2017Q1 | wtm |
Proceeds From Sale Of Trading Fixed Maturity And Convertible Fixed Maturity Investments
ProceedsFromSaleOfTradingFixedMaturityAndConvertibleFixedMaturityInvestments
|
375400000 | USD |
CY2017Q1 | wtm |
Taxon Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities
TaxonNetRealizedGainLossandForeignCurrencyGainLossonTradingSecurities
|
200000 | USD |
CY2018Q1 | wtm |
Taxon Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities
TaxonNetRealizedGainLossandForeignCurrencyGainLossonTradingSecurities
|
600000 | USD |
CY2017Q1 | wtm |
Taxonnetrealizedandunrealizedgainslosstradingsecurities
Taxonnetrealizedandunrealizedgainslosstradingsecurities
|
3900000 | USD |
CY2018Q1 | wtm |
Taxonnetrealizedandunrealizedgainslosstradingsecurities
Taxonnetrealizedandunrealizedgainslosstradingsecurities
|
-5700000 | USD |
CY2017Q1 | wtm |
Trading Securities Realized Foreign Currency Gain Loss Netof Tax
TradingSecuritiesRealizedForeignCurrencyGainLossNetofTax
|
200000 | USD |
CY2018Q1 | wtm |
Trading Securities Realized Foreign Currency Gain Loss Netof Tax
TradingSecuritiesRealizedForeignCurrencyGainLossNetofTax
|
11000000 | USD |
CY2017Q1 | wtm |
Trading Securities Realized Gain Loss Total
TradingSecuritiesRealizedGainLossTotal
|
600000 | USD |
CY2018Q1 | wtm |
Trading Securities Realized Gain Loss Total
TradingSecuritiesRealizedGainLossTotal
|
-5100000 | USD |
CY2017Q1 | wtm |
Trading Securities Realized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesRealizedHoldingGainLossonInvestmentsafterTax
|
200000 | USD |
CY2018Q1 | wtm |
Trading Securities Realized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesRealizedHoldingGainLossonInvestmentsafterTax
|
-16700000 | USD |
CY2017Q1 | wtm |
Trading Securities Taxon Realized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesTaxonRealizedForeignCurrencyTransactionGainLossTax
|
0 | USD |
CY2018Q1 | wtm |
Trading Securities Taxon Realized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesTaxonRealizedForeignCurrencyTransactionGainLossTax
|
0 | USD |
CY2017Q1 | wtm |
Trading Securities Taxon Unrealized Holding Gain Losson Investments
TradingSecuritiesTaxonUnrealizedHoldingGainLossonInvestments
|
3700000 | USD |
CY2018Q1 | wtm |
Trading Securities Taxon Unrealized Holding Gain Losson Investments
TradingSecuritiesTaxonUnrealizedHoldingGainLossonInvestments
|
-6300000 | USD |
CY2017Q1 | wtm |
Trading Securities Unrealized Foreign Currency Gain Loss Net Of Tax
TradingSecuritiesUnrealizedForeignCurrencyGainLossNetOfTax
|
-500000 | USD |
CY2018Q1 | wtm |
Trading Securities Unrealized Foreign Currency Gain Loss Net Of Tax
TradingSecuritiesUnrealizedForeignCurrencyGainLossNetOfTax
|
-10700000 | USD |
CY2017Q1 | wtm |
Trading Securities Unrealized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesUnrealizedForeignCurrencyTransactionGainLossTax
|
0 | USD |
CY2018Q1 | wtm |
Trading Securities Unrealized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesUnrealizedForeignCurrencyTransactionGainLossTax
|
0 | USD |
CY2017Q1 | wtm |
Trading Securities Unrealized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesUnrealizedHoldingGainLossonInvestmentsafterTax
|
32500000 | USD |
CY2018Q1 | wtm |
Trading Securities Unrealized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesUnrealizedHoldingGainLossonInvestmentsafterTax
|
-31600000 | USD |
CY2017Q1 | wtm |
Tradingsecurities Taxon Realized Holding Gain Losson Investments
TradingsecuritiesTaxonRealizedHoldingGainLossonInvestments
|
200000 | USD |
CY2018Q1 | wtm |
Tradingsecurities Taxon Realized Holding Gain Losson Investments
TradingsecuritiesTaxonRealizedHoldingGainLossonInvestments
|
600000 | USD |
CY2018Q1 | us-gaap |
Loss Contingency Disclosures
LossContingencyDisclosures
|
<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;">Contingencies</font></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Legal Contingencies</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">White Mountains is subject to litigation and arbitration in the normal course of business. White Mountains considers the requirements of ASC 450 when evaluating its exposure to litigation and arbitration. ASC 450 requires that accruals be established for litigation and arbitration if it is probable that a loss has been incurred and it can be reasonably estimated. ASC 450 also requires that litigation and arbitration be disclosed if it is probable that a loss has been incurred or if there is a reasonable possibility that a loss may have been incurred. White Mountains does not have any current litigation that may have a material adverse effect on White Mountains’s financial condition, results of operations or cash flows. </font></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following description presents significant legal contingencies, ongoing non-claims related litigation or arbitration as of </font><font style="font-family:inherit;font-size:10pt;">March 31, 2018</font><font style="font-family:inherit;font-size:10pt;">: </font></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Sirius Tax Contingencies</font></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">A subsidiary of Sirius Group, which was sold by White Mountains in 2016, has been denied interest deductions by the Swedish Tax Authority (“STA”) for tax years 2013-2016.  The Swedish subsidiary has filed an appeal in the Swedish Administrative Court for tax year 2013 and will preserve its right to contest the STA’s decision for later years if needed.  Sirius Group believes it is more likely than not that it will prevail in the court proceedings.  However, if the ultimate decision in the Swedish courts is unfavorable, White Mountains would be required to indemnify Sirius Group for the tax effect of the interest deductions, which is approximately </font><font style="font-family:inherit;font-size:10pt;">$18.5 million</font><font style="font-family:inherit;font-size:10pt;">.</font></div></div> | |
CY2018Q1 | 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;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</font></div></div> |