$WTM
WHITE MOUNTAINS INSURANCE GROUP LTD

2019 Q4 Form 10-Q Financial Statement

#000077686719000030 Filed on November 06, 2019

View on sec.gov

Income Statement

Concept 2019 Q4 2019 Q3 2019 Q2
Revenue $175.3M $155.5M $129.0M
YoY Change 2821.67% -21.74% 5.48%
Cost Of Revenue $2.300M
YoY Change -96.34%
Gross Profit $153.2M
YoY Change 12.81%
Gross Profit Margin 98.52%
Selling, General & Admin $109.3M $95.60M $97.10M
YoY Change -21.48% -32.82% -24.55%
% of Gross Profit 62.4%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $9.300M $1.400M $2.800M
YoY Change 57.63% 16.67% 115.38%
% of Gross Profit 0.91%
Operating Expenses $117.4M $101.7M $102.8M
YoY Change -19.92% -32.65% -22.53%
Operating Profit $51.50M
YoY Change -438.82%
Interest Expense -$1.400M -$2.700M -$10.40M
YoY Change -60.0% -20.59% 420.0%
% of Operating Profit -5.24%
Other Income/Expense, Net
YoY Change
Pretax Income $56.50M $51.10M $15.80M
YoY Change -139.21% 15.35% -227.42%
Income Tax $10.40M $8.800M -$100.0K
% Of Pretax Income 18.41% 17.22% -0.63%
Net Earnings $60.90M $48.70M $20.50M
YoY Change -144.29% 59.15% -237.58%
Net Earnings / Revenue 34.74% 31.32% 15.89%
Basic Earnings Per Share $19.12 $15.29 $6.44
Diluted Earnings Per Share $19.12 $15.29 $6.44
COMMON SHARES
Basic Shares Outstanding 3.185M shares 3.142M shares 3.141M shares
Diluted Shares Outstanding 3.142M shares 3.141M shares

Balance Sheet

Concept 2019 Q4 2019 Q3 2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents $161.0M $149.2M $150.3M
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 $23.00M $23.00M $24.00M
YoY Change
Goodwill $394.7M $424.8M $428.6M
YoY Change 3.9% 32.17% 1554.83%
Intangibles
YoY Change
Long-Term Investments $2.947B $2.842B $2.670B
YoY Change 15.89% 6.08% 2.81%
Other Assets $3.000M $3.000M $3.000M
YoY Change 0.0% 0.0% 0.0%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets $3.983B $3.836B $3.752B
YoY Change 18.46% 12.08% 11.4%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses $100.0M $87.00M $75.00M
YoY Change 156.41% 117.5% 141.94%
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 $100.0M $91.00M $75.00M
YoY Change 36.99% -7.14% -17.58%
LONG-TERM LIABILITIES
Long-Term Debt $284.0M $230.0M $231.0M
YoY Change 47.15% 40.24% 35.88%
Other Long-Term Liabilities $155.0M $148.0M $132.0M
YoY Change 24.0% 38.32% 76.0%
Total Long-Term Liabilities $439.0M $378.0M $363.0M
YoY Change 38.05% 39.48% 48.16%
TOTAL LIABILITIES
Total Short-Term Liabilities $100.0M $91.00M $75.00M
Total Long-Term Liabilities $439.0M $378.0M $363.0M
Total Liabilities $838.5M $765.4M $744.3M
YoY Change 30.12% 31.24% 30.44%
SHAREHOLDERS EQUITY
Retained Earnings $2.672B $2.612B $2.563B
YoY Change 17.99% 8.48% 8.29%
Common Stock $596.3M $593.2M $590.5M
YoY Change 2.11% 2.36% 2.55%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $3.262B $3.193B $3.144B
YoY Change
Total Liabilities & Shareholders Equity $3.983B $3.836B $3.752B
YoY Change 18.46% 12.08% 11.4%

Cashflow Statement

Concept 2019 Q4 2019 Q3 2019 Q2
OPERATING ACTIVITIES
Net Income $60.90M $48.70M $20.50M
YoY Change -144.29% 59.15% -237.58%
Depreciation, Depletion And Amortization $9.300M $1.400M $2.800M
YoY Change 57.63% 16.67% 115.38%
Cash From Operating Activities -$48.00M -$74.30M $42.90M
YoY Change 7900.0% 1356.86% 122.28%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions $81.40M
YoY Change
Other Investing Activities $600.0K $52.10M -$69.80M
YoY Change -101.22% -354.15% -115.46%
Cash From Investing Activities $600.0K $52.10M -$69.80M
YoY Change -101.22% -387.85% -115.54%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 57.80M 21.70M 45.50M
YoY Change 20.67% 342.86% -109.95%
NET CHANGE
Cash From Operating Activities -48.00M -74.30M 42.90M
Cash From Investing Activities 600.0K 52.10M -69.80M
Cash From Financing Activities 57.80M 21.70M 45.50M
Net Change In Cash 10.40M -500.0K 18.60M
YoY Change -647.37% -97.27% 70.64%
FREE CASH FLOW
Cash From Operating Activities -$48.00M -$74.30M $42.90M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

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PaymentsForProceedsFromShortTermInvestments
54500000 USD
us-gaap Payments For Proceeds From Short Term Investments
PaymentsForProceedsFromShortTermInvestments
138500000 USD
wtm Proceeds From Sale Of Trading Common Equity Securities
ProceedsFromSaleOfTradingCommonEquitySecurities
129800000 USD
us-gaap Payments For Proceeds From Investments
PaymentsForProceedsFromInvestments
-28700000 USD
us-gaap Payments For Proceeds From Investments
PaymentsForProceedsFromInvestments
5500000 USD
us-gaap Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
173000000.0 USD
us-gaap Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
65900000 USD
us-gaap Payments To Acquire Businesses And Interest In Affiliates
PaymentsToAcquireBusinessesAndInterestInAffiliates
252100000 USD
wtm Increase Decrease In Unsettled Accounts Receivable And Accounts Payable
IncreaseDecreaseInUnsettledAccountsReceivableAndAccountsPayable
-12900000 USD
wtm Increase Decrease In Unsettled Accounts Receivable And Accounts Payable
IncreaseDecreaseInUnsettledAccountsReceivableAndAccountsPayable
33800000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-60500000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
508400000 USD
us-gaap Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
149400000 USD
us-gaap Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
50900000 USD
us-gaap Repayments Of Debt
RepaymentsOfDebt
22200000 USD
us-gaap Repayments Of Debt
RepaymentsOfDebt
11200000 USD
us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
3200000 USD
us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
3800000 USD
us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
0 USD
us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
504700000 USD
us-gaap Payments Of Capital Distribution
PaymentsOfCapitalDistribution
27700000 USD
us-gaap Payments Of Capital Distribution
PaymentsOfCapitalDistribution
4600000 USD
us-gaap Payment For Contingent Consideration Liability Financing Activities
PaymentForContingentConsiderationLiabilityFinancingActivities
2600000 USD
us-gaap Payment For Contingent Consideration Liability Financing Activities
PaymentForContingentConsiderationLiabilityFinancingActivities
2600000 USD
CY2017Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
97100000 USD
wtm Repurchaseof Shares From Noncontrolling Interest Shareholders
RepurchaseofSharesFromNoncontrollingInterestShareholders
21100000 USD
wtm Repurchaseof Shares From Noncontrolling Interest Shareholders
RepurchaseofSharesFromNoncontrollingInterestShareholders
0 USD
wtm Proceeds From Issuanceof Sharesto Noncontrolling Interest Shareholders
ProceedsFromIssuanceofSharestoNoncontrollingInterestShareholders
62700000 USD
wtm Proceeds From Issuanceof Sharesto Noncontrolling Interest Shareholders
ProceedsFromIssuanceofSharestoNoncontrollingInterestShareholders
0 USD
us-gaap Proceeds From Partnership Contribution
ProceedsFromPartnershipContribution
1600000 USD
us-gaap Proceeds From Partnership Contribution
ProceedsFromPartnershipContribution
0 USD
wtm Members Capital Contribution
MembersCapitalContribution
-42900000 USD
wtm Members Capital Contribution
MembersCapitalContribution
-26900000 USD
us-gaap Payments To Acquire Additional Interest In Subsidiaries
PaymentsToAcquireAdditionalInterestInSubsidiaries
0 USD
us-gaap Payments To Acquire Additional Interest In Subsidiaries
PaymentsToAcquireAdditionalInterestInSubsidiaries
1700000 USD
wtm Fidus Re Premium Payment
FidusRePremiumPayment
2200000 USD
wtm Fidus Re Premium Payment
FidusRePremiumPayment
3000000.0 USD
us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-4900000 USD
us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-8400000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
172700000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-462200000 USD
us-gaap Effect Of Exchange Rate On Cash And Cash Equivalents
EffectOfExchangeRateOnCashAndCashEquivalents
-800000 USD
us-gaap Effect Of Exchange Rate On Cash And Cash Equivalents
EffectOfExchangeRateOnCashAndCashEquivalents
-600000 USD
us-gaap Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
38900000 USD
us-gaap Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
15100000 USD
CY2018Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
110300000 USD
CY2019Q3 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
149200000 USD
CY2018Q3 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
112200000 USD
us-gaap Interest Paid Net
InterestPaidNet
11700000 USD
us-gaap Interest Paid Net
InterestPaidNet
5300000 USD
us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
300000 USD
us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
500000 USD
us-gaap Use Of Estimates
UseOfEstimates
<div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</span></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><span 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.</span></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>
CY2018Q1 us-gaap Equity Method Investment Aggregate Cost
EquityMethodInvestmentAggregateCost
125000000.0 USD
CY2019Q2 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
81400000 USD
CY2018Q3 us-gaap Investment Income Investment Expense
InvestmentIncomeInvestmentExpense
500000 USD
CY2019Q3 us-gaap Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
18800000 USD
CY2018Q3 us-gaap Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
13900000 USD
us-gaap Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
56500000 USD
us-gaap Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
46700000 USD
CY2019Q3 us-gaap Investment Income Investment Expense
InvestmentIncomeInvestmentExpense
400000 USD
us-gaap Investment Income Investment Expense
InvestmentIncomeInvestmentExpense
1100000 USD
us-gaap Investment Income Investment Expense
InvestmentIncomeInvestmentExpense
1800000 USD
CY2019Q3 us-gaap Net Investment Income
NetInvestmentIncome
18400000 USD
CY2018Q3 us-gaap Net Investment Income
NetInvestmentIncome
13400000 USD
us-gaap Net Investment Income
NetInvestmentIncome
55400000 USD
us-gaap Net Investment Income
NetInvestmentIncome
44900000 USD
CY2019Q3 wtm Trading Securities Realized Gain Loss Total
TradingSecuritiesRealizedGainLossTotal
19600000 USD
CY2018Q3 wtm Trading Securities Realized Gain Loss Total
TradingSecuritiesRealizedGainLossTotal
-10200000 USD
wtm Trading Securities Realized Gain Loss Total
TradingSecuritiesRealizedGainLossTotal
90800000 USD
wtm Trading Securities Realized Gain Loss Total
TradingSecuritiesRealizedGainLossTotal
-13900000 USD
CY2019Q3 wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecurities
47400000 USD
CY2018Q3 wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecurities
76300000 USD
wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecurities
257000000.0 USD
wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecurities
36800000 USD
CY2019Q3 us-gaap Net Realized Or Unrealized Gain Loss On Trading Securities
NetRealizedOrUnrealizedGainLossOnTradingSecurities
67000000.0 USD
CY2018Q3 us-gaap Net Realized Or Unrealized Gain Loss On Trading Securities
NetRealizedOrUnrealizedGainLossOnTradingSecurities
66100000 USD
us-gaap Net Realized Or Unrealized Gain Loss On Trading Securities
NetRealizedOrUnrealizedGainLossOnTradingSecurities
347800000 USD
us-gaap Net Realized Or Unrealized Gain Loss On Trading Securities
NetRealizedOrUnrealizedGainLossOnTradingSecurities
22900000 USD
CY2019Q3 wtm Taxonnetrealizedandunrealizedgainslosstradingsecurities
Taxonnetrealizedandunrealizedgainslosstradingsecurities
13200000 USD
CY2018Q3 wtm Taxonnetrealizedandunrealizedgainslosstradingsecurities
Taxonnetrealizedandunrealizedgainslosstradingsecurities
9700000 USD
wtm Taxonnetrealizedandunrealizedgainslosstradingsecurities
Taxonnetrealizedandunrealizedgainslosstradingsecurities
69500000 USD
wtm Taxonnetrealizedandunrealizedgainslosstradingsecurities
Taxonnetrealizedandunrealizedgainslosstradingsecurities
5900000 USD
CY2019Q3 wtm Net Realizedand Unrealized Gain Losson Trading Securities Netof Tax
NetRealizedandUnrealizedGainLossonTradingSecuritiesNetofTax
53800000 USD
CY2018Q3 wtm Net Realizedand Unrealized Gain Losson Trading Securities Netof Tax
NetRealizedandUnrealizedGainLossonTradingSecuritiesNetofTax
56400000 USD
wtm Net Realizedand Unrealized Gain Losson Trading Securities Netof Tax
NetRealizedandUnrealizedGainLossonTradingSecuritiesNetofTax
278300000 USD
wtm Net Realizedand Unrealized Gain Losson Trading Securities Netof Tax
NetRealizedandUnrealizedGainLossonTradingSecuritiesNetofTax
17000000.0 USD
wtm Trading Securities Realized Gain Loss Total
TradingSecuritiesRealizedGainLossTotal
90800000 USD
CY2019Q3 wtm Trading Securities Realized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesRealizedHoldingGainLossonInvestmentsafterTax
19400000 USD
CY2019Q3 us-gaap Trading Securities Realized Gain Loss
TradingSecuritiesRealizedGainLoss
19600000 USD
CY2019Q3 us-gaap Foreign Currency Transaction Gain Loss Realized
ForeignCurrencyTransactionGainLossRealized
0 USD
CY2019Q3 wtm Trading Securities Realized Gain Loss Total
TradingSecuritiesRealizedGainLossTotal
19600000 USD
CY2018Q3 us-gaap Trading Securities Realized Gain Loss
TradingSecuritiesRealizedGainLoss
-10200000 USD
CY2018Q3 us-gaap Foreign Currency Transaction Gain Loss Realized
ForeignCurrencyTransactionGainLossRealized
0 USD
CY2018Q3 wtm Trading Securities Realized Gain Loss Total
TradingSecuritiesRealizedGainLossTotal
-10200000 USD
CY2019Q3 wtm Tradingsecurities Taxon Realized Holding Gain Losson Investments
TradingsecuritiesTaxonRealizedHoldingGainLossonInvestments
200000 USD
CY2019Q3 wtm Trading Securities Taxon Realized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesTaxonRealizedForeignCurrencyTransactionGainLossTax
0 USD
CY2019Q3 wtm Taxon Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities
TaxonNetRealizedGainLossandForeignCurrencyGainLossonTradingSecurities
200000 USD
CY2018Q3 wtm Tradingsecurities Taxon Realized Holding Gain Losson Investments
TradingsecuritiesTaxonRealizedHoldingGainLossonInvestments
-2300000 USD
CY2018Q3 wtm Trading Securities Taxon Realized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesTaxonRealizedForeignCurrencyTransactionGainLossTax
0 USD
CY2018Q3 wtm Taxon Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities
TaxonNetRealizedGainLossandForeignCurrencyGainLossonTradingSecurities
-2300000 USD
CY2019Q3 wtm Trading Securities Realized Foreign Currency Gain Loss Netof Tax
TradingSecuritiesRealizedForeignCurrencyGainLossNetofTax
0 USD
CY2019Q3 wtm Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities Netof Tax
NetRealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesNetofTax
19400000 USD
CY2018Q3 wtm Trading Securities Realized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesRealizedHoldingGainLossonInvestmentsafterTax
-7900000 USD
CY2018Q3 wtm Trading Securities Realized Foreign Currency Gain Loss Netof Tax
TradingSecuritiesRealizedForeignCurrencyGainLossNetofTax
0 USD
CY2018Q3 wtm Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities Netof Tax
NetRealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesNetofTax
-7900000 USD
us-gaap Trading Securities Realized Gain Loss
TradingSecuritiesRealizedGainLoss
90800000 USD
us-gaap Foreign Currency Transaction Gain Loss Realized
ForeignCurrencyTransactionGainLossRealized
0 USD
us-gaap Trading Securities Realized Gain Loss
TradingSecuritiesRealizedGainLoss
-24900000 USD
us-gaap Foreign Currency Transaction Gain Loss Realized
ForeignCurrencyTransactionGainLossRealized
11000000.0 USD
wtm Trading Securities Realized Gain Loss Total
TradingSecuritiesRealizedGainLossTotal
-13900000 USD
wtm Tradingsecurities Taxon Realized Holding Gain Losson Investments
TradingsecuritiesTaxonRealizedHoldingGainLossonInvestments
9000000.0 USD
wtm Trading Securities Taxon Realized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesTaxonRealizedForeignCurrencyTransactionGainLossTax
0 USD
wtm Taxon Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities
TaxonNetRealizedGainLossandForeignCurrencyGainLossonTradingSecurities
9000000.0 USD
wtm Tradingsecurities Taxon Realized Holding Gain Losson Investments
TradingsecuritiesTaxonRealizedHoldingGainLossonInvestments
-11200000 USD
wtm Trading Securities Taxon Realized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesTaxonRealizedForeignCurrencyTransactionGainLossTax
0 USD
wtm Taxon Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities
TaxonNetRealizedGainLossandForeignCurrencyGainLossonTradingSecurities
-11200000 USD
wtm Trading Securities Realized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesRealizedHoldingGainLossonInvestmentsafterTax
81800000 USD
wtm Trading Securities Realized Foreign Currency Gain Loss Netof Tax
TradingSecuritiesRealizedForeignCurrencyGainLossNetofTax
0 USD
wtm Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities Netof Tax
NetRealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesNetofTax
81800000 USD
wtm Trading Securities Realized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesRealizedHoldingGainLossonInvestmentsafterTax
-13700000 USD
wtm Trading Securities Realized Foreign Currency Gain Loss Netof Tax
TradingSecuritiesRealizedForeignCurrencyGainLossNetofTax
11000000.0 USD
wtm Net Realized Gain Lossand Foreign Currency Gain Losson Trading Securities Netof Tax
NetRealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesNetofTax
-2700000 USD
CY2019Q3 us-gaap Trading Securities Unrealized Holding Gain Loss
TradingSecuritiesUnrealizedHoldingGainLoss
48200000 USD
CY2019Q3 us-gaap Foreign Currency Transaction Gain Loss Unrealized
ForeignCurrencyTransactionGainLossUnrealized
-800000 USD
CY2019Q3 wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecurities
47400000 USD
CY2018Q3 us-gaap Trading Securities Unrealized Holding Gain Loss
TradingSecuritiesUnrealizedHoldingGainLoss
76400000 USD
CY2018Q3 us-gaap Foreign Currency Transaction Gain Loss Unrealized
ForeignCurrencyTransactionGainLossUnrealized
-100000 USD
CY2018Q3 wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecurities
76300000 USD
CY2019Q3 wtm Trading Securities Taxon Unrealized Holding Gain Losson Investments
TradingSecuritiesTaxonUnrealizedHoldingGainLossonInvestments
13000000.0 USD
CY2019Q3 wtm Trading Securities Unrealized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesUnrealizedForeignCurrencyTransactionGainLossTax
0 USD
CY2019Q3 wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities Tax
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesTax
13000000.0 USD
CY2018Q3 wtm Trading Securities Taxon Unrealized Holding Gain Losson Investments
TradingSecuritiesTaxonUnrealizedHoldingGainLossonInvestments
12000000.0 USD
CY2018Q3 wtm Trading Securities Unrealized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesUnrealizedForeignCurrencyTransactionGainLossTax
0 USD
CY2018Q3 wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities Tax
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesTax
12000000.0 USD
CY2019Q3 wtm Trading Securities Unrealized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesUnrealizedHoldingGainLossonInvestmentsafterTax
35200000 USD
CY2019Q3 wtm Trading Securities Unrealized Foreign Currency Gain Loss Net Of Tax
TradingSecuritiesUnrealizedForeignCurrencyGainLossNetOfTax
-800000 USD
CY2019Q3 wtm Net Unrealized Gain Loss And Foreign Currency Gain Loss On Trading Securities Net Of Tax
NetUnrealizedGainLossAndForeignCurrencyGainLossOnTradingSecuritiesNetOfTax
34400000 USD
CY2018Q3 wtm Trading Securities Unrealized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesUnrealizedHoldingGainLossonInvestmentsafterTax
64400000 USD
CY2018Q3 wtm Trading Securities Unrealized Foreign Currency Gain Loss Net Of Tax
TradingSecuritiesUnrealizedForeignCurrencyGainLossNetOfTax
-100000 USD
CY2018Q3 wtm Net Unrealized Gain Loss And Foreign Currency Gain Loss On Trading Securities Net Of Tax
NetUnrealizedGainLossAndForeignCurrencyGainLossOnTradingSecuritiesNetOfTax
64300000 USD
us-gaap Trading Securities Unrealized Holding Gain Loss
TradingSecuritiesUnrealizedHoldingGainLoss
257800000 USD
us-gaap Foreign Currency Transaction Gain Loss Unrealized
ForeignCurrencyTransactionGainLossUnrealized
-800000 USD
wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecurities
257000000.0 USD
us-gaap Trading Securities Unrealized Holding Gain Loss
TradingSecuritiesUnrealizedHoldingGainLoss
48400000 USD
us-gaap Foreign Currency Transaction Gain Loss Unrealized
ForeignCurrencyTransactionGainLossUnrealized
-11600000 USD
wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecurities
36800000 USD
wtm Trading Securities Taxon Unrealized Holding Gain Losson Investments
TradingSecuritiesTaxonUnrealizedHoldingGainLossonInvestments
-60500000 USD
wtm Trading Securities Unrealized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesUnrealizedForeignCurrencyTransactionGainLossTax
0 USD
wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities Tax
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesTax
-60500000 USD
wtm Trading Securities Taxon Unrealized Holding Gain Losson Investments
TradingSecuritiesTaxonUnrealizedHoldingGainLossonInvestments
17100000 USD
wtm Trading Securities Unrealized Foreign Currency Transaction Gain Loss Tax
TradingSecuritiesUnrealizedForeignCurrencyTransactionGainLossTax
0 USD
wtm Net Unrealized Gain Lossand Foreign Currency Gain Losson Trading Securities Tax
NetUnrealizedGainLossandForeignCurrencyGainLossonTradingSecuritiesTax
17100000 USD
wtm Trading Securities Unrealized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesUnrealizedHoldingGainLossonInvestmentsafterTax
197300000 USD
wtm Trading Securities Unrealized Foreign Currency Gain Loss Net Of Tax
TradingSecuritiesUnrealizedForeignCurrencyGainLossNetOfTax
-800000 USD
wtm Net Unrealized Gain Loss And Foreign Currency Gain Loss On Trading Securities Net Of Tax
NetUnrealizedGainLossAndForeignCurrencyGainLossOnTradingSecuritiesNetOfTax
196500000 USD
wtm Trading Securities Unrealized Holding Gain Losson Investmentsafter Tax
TradingSecuritiesUnrealizedHoldingGainLossonInvestmentsafterTax
31300000 USD
wtm Trading Securities Unrealized Foreign Currency Gain Loss Net Of Tax
TradingSecuritiesUnrealizedForeignCurrencyGainLossNetOfTax
-11600000 USD
wtm Net Unrealized Gain Loss And Foreign Currency Gain Loss On Trading Securities Net Of Tax
NetUnrealizedGainLossAndForeignCurrencyGainLossOnTradingSecuritiesNetOfTax
19700000 USD
CY2018 wtm Percentage Of Investments Recorded At Fair Value
PercentageOfInvestmentsRecordedAtFairValue
0.87
wtm Percentage Of Investments Recorded At Fair Value
PercentageOfInvestmentsRecordedAtFairValue
0.73
CY2018Q4 us-gaap Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
2328700000 USD
wtm Fair Value Assets Measured On Recurring Basis Gain Loss Included In Earnings
FairValueAssetsMeasuredOnRecurringBasisGainLossIncludedInEarnings
-347500000 USD
us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
1000000.0 USD
us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
750400000 USD
us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
856200000 USD
wtm Fair Value Assets Measured On Recurring Basis Transfers In
FairValueAssetsMeasuredOnRecurringBasisTransfersIn
82600000 USD
wtm Fair Value Assets Measured On Recurring Basis Transfers Out
FairValueAssetsMeasuredOnRecurringBasisTransfersOut
82600000 USD
CY2019Q3 us-gaap Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
2569400000 USD
CY2017Q4 us-gaap Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
3208300000 USD
wtm Fair Value Assets Measured On Recurring Basis Gain Loss Included In Earnings
FairValueAssetsMeasuredOnRecurringBasisGainLossIncludedInEarnings
-31300000 USD
us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
2200000 USD
us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
1151900000 USD
us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
2024200000 USD
wtm Fair Value Assets Measured On Recurring Basis Transfers In
FairValueAssetsMeasuredOnRecurringBasisTransfersIn
0 USD
wtm Fair Value Assets Measured On Recurring Basis Transfers Out
FairValueAssetsMeasuredOnRecurringBasisTransfersOut
0 USD
CY2018Q3 us-gaap Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
2365100000 USD
CY2019Q2 us-gaap Goodwill
Goodwill
428600000 USD
CY2018Q2 us-gaap Goodwill
Goodwill
25900000 USD
CY2018Q3 us-gaap Goodwill Foreign Currency Translation Gain Loss
GoodwillForeignCurrencyTranslationGainLoss
0 USD
CY2018Q4 us-gaap Goodwill
Goodwill
379900000 USD
CY2017Q4 us-gaap Goodwill
Goodwill
25900000 USD
us-gaap Goodwill Foreign Currency Translation Gain Loss
GoodwillForeignCurrencyTranslationGainLoss
0 USD
CY2019Q3 us-gaap Goodwill Fair Value Disclosure
GoodwillFairValueDisclosure
424800000 USD
CY2019Q3 us-gaap Goodwill
Goodwill
424800000 USD
CY2018Q4 us-gaap Goodwill Fair Value Disclosure
GoodwillFairValueDisclosure
379900000 USD
CY2018Q4 us-gaap Goodwill
Goodwill
379900000 USD
CY2019Q3 wtm Intangible Assets Gross Including Goodwill
IntangibleAssetsGrossIncludingGoodwill
683400000 USD
CY2019Q3 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
22500000 USD
CY2019Q3 us-gaap Intangible Assets Net Including Goodwill
IntangibleAssetsNetIncludingGoodwill
660900000 USD
CY2018Q4 wtm Intangible Assets Gross Including Goodwill
IntangibleAssetsGrossIncludingGoodwill
591100000 USD
CY2018Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
53600000 USD
CY2018Q4 us-gaap Intangible Assets Net Including Goodwill
IntangibleAssetsNetIncludingGoodwill
537500000 USD
CY2019Q3 us-gaap Long Term Debt
LongTermDebt
230200000 USD
CY2018Q4 us-gaap Long Term Debt
LongTermDebt
192700000 USD
CY2019Q3 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.172
us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.054
us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
CY2018Q3 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
-0.081
us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
-0.012
us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
CY2017 wtm Percentageofdiscountedfuturecashflows
Percentageofdiscountedfuturecashflows
0.10
CY2019Q3 us-gaap Equity Method Investment Ownership Percentage
EquityMethodInvestmentOwnershipPercentage
0.500
CY2018Q4 us-gaap Equity Method Investment Ownership Percentage
EquityMethodInvestmentOwnershipPercentage
0.500
CY2019Q3 us-gaap Operating Lease Cost
OperatingLeaseCost
1900000 USD
us-gaap Operating Lease Cost
OperatingLeaseCost
5400000 USD
CY2019Q3 us-gaap Sublease Income
SubleaseIncome
100000 USD
us-gaap Sublease Income
SubleaseIncome
300000 USD
CY2019Q3 us-gaap Lease Cost
LeaseCost
1800000 USD
us-gaap Lease Cost
LeaseCost
5100000 USD
CY2019Q3 us-gaap Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
1700000 USD
CY2019Q3 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
5700000 USD
CY2019Q3 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
4700000 USD
CY2019Q3 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
4200000 USD
CY2019Q3 us-gaap Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
3600000 USD
CY2019Q3 us-gaap Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
6300000 USD
CY2019Q3 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
26200000 USD
CY2019Q3 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
2900000 USD
CY2019Q3 us-gaap Operating Lease Liability
OperatingLeaseLiability
23300000 USD
CY2019Q3 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
23000000.0 USD
CY2019Q3 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.045
CY2019Q3 us-gaap Operating Lease Liability
OperatingLeaseLiability
23300000 USD
CY2019Q3 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
48700000 USD
CY2018Q3 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
40800000 USD
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
353600000 USD
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
-3700000 USD
CY2019Q3 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
900000 USD
CY2018Q3 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-17300000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
1600000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-17200000 USD
CY2019Q3 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
47800000 USD
CY2018Q3 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
58100000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
352000000.0 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
13500000 USD
CY2019Q3 wtm Aggregate Allocation To Restricted Shares Including Dividend
AggregateAllocationToRestrictedSharesIncludingDividend
700000 USD
CY2018Q3 wtm Aggregate Allocation To Restricted Shares Including Dividend
AggregateAllocationToRestrictedSharesIncludingDividend
800000 USD
wtm Aggregate Allocation To Restricted Shares Including Dividend
AggregateAllocationToRestrictedSharesIncludingDividend
4400000 USD
wtm Aggregate Allocation To Restricted Shares Including Dividend
AggregateAllocationToRestrictedSharesIncludingDividend
200000 USD
CY2019Q3 wtm Net Income Loss Attributableto Parent Basicand Diluted Earnings Per Share Numerators
NetIncomeLossAttributabletoParentBasicandDilutedEarningsPerShareNumerators
47100000 USD
CY2018Q3 wtm Net Income Loss Attributableto Parent Basicand Diluted Earnings Per Share Numerators
NetIncomeLossAttributabletoParentBasicandDilutedEarningsPerShareNumerators
57300000 USD
wtm Net Income Loss Attributableto Parent Basicand Diluted Earnings Per Share Numerators
NetIncomeLossAttributabletoParentBasicandDilutedEarningsPerShareNumerators
347600000 USD
wtm Net Income Loss Attributableto Parent Basicand Diluted Earnings Per Share Numerators
NetIncomeLossAttributabletoParentBasicandDilutedEarningsPerShareNumerators
13300000 USD
CY2019Q3 us-gaap Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
3185400 shares
CY2018Q3 us-gaap Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
3180400 shares
us-gaap Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
3180400 shares
us-gaap Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
3450800 shares
CY2019Q3 us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
43400 shares
CY2018Q3 us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
41500 shares
us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
39600 shares
us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
39700 shares
CY2019Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
3142000.0 shares
CY2018Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
3138900 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
3140800 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
3411100 shares
CY2019Q3 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
3185400 shares
CY2018Q3 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
3180400 shares
us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
3180400 shares
us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
3450800 shares
CY2019Q3 us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
43400 shares
CY2018Q3 us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
41500 shares
us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
39600 shares
us-gaap Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
39700 shares
CY2019Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
3142000.0 shares
CY2018Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
3138900 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
3140800 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
3411100 shares
CY2019Q3 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0
CY2018Q3 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0
us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
1.00
us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
1.00
CY2019Q3 us-gaap Earnings Per Share Diluted Undistributed
EarningsPerShareDilutedUndistributed
15.01
CY2018Q3 us-gaap Earnings Per Share Diluted Undistributed
EarningsPerShareDilutedUndistributed
18.27
us-gaap Earnings Per Share Diluted Undistributed
EarningsPerShareDilutedUndistributed
109.67
us-gaap Earnings Per Share Diluted Undistributed
EarningsPerShareDilutedUndistributed
2.90
CY2019Q3 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
15.01
CY2018Q3 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
18.27
us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
110.67
us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
3.90
CY2019Q3 wtm Income Loss From Continuing Operatings Excluding Portion Attributable To Noncontrolling Interest Net
IncomeLossFromContinuingOperatingsExcludingPortionAttributableToNoncontrollingInterestNet
47100000 USD
CY2018Q3 wtm Income Loss From Continuing Operatings Excluding Portion Attributable To Noncontrolling Interest Net
IncomeLossFromContinuingOperatingsExcludingPortionAttributableToNoncontrollingInterestNet
57300000 USD
wtm Income Loss From Continuing Operatings Excluding Portion Attributable To Noncontrolling Interest Net
IncomeLossFromContinuingOperatingsExcludingPortionAttributableToNoncontrollingInterestNet
347600000 USD
wtm Income Loss From Continuing Operatings Excluding Portion Attributable To Noncontrolling Interest Net
IncomeLossFromContinuingOperatingsExcludingPortionAttributableToNoncontrollingInterestNet
13300000 USD
CY2019Q3 wtm Dividends Common Stock Cash Net Of Restricted Common Share Amounts
DividendsCommonStockCashNetOfRestrictedCommonShareAmounts
0 USD
CY2018Q3 wtm Dividends Common Stock Cash Net Of Restricted Common Share Amounts
DividendsCommonStockCashNetOfRestrictedCommonShareAmounts
0 USD
wtm Dividends Common Stock Cash Net Of Restricted Common Share Amounts
DividendsCommonStockCashNetOfRestrictedCommonShareAmounts
3200000 USD
wtm Dividends Common Stock Cash Net Of Restricted Common Share Amounts
DividendsCommonStockCashNetOfRestrictedCommonShareAmounts
3700000 USD
CY2019Q3 us-gaap Undistributed Earnings
UndistributedEarnings
47100000 USD
CY2018Q3 us-gaap Undistributed Earnings
UndistributedEarnings
57300000 USD
us-gaap Undistributed Earnings
UndistributedEarnings
344400000 USD
us-gaap Undistributed Earnings
UndistributedEarnings
9600000 USD
CY2019Q3 us-gaap Minority Interest
MinorityInterest
-122500000 USD
CY2018Q4 us-gaap Minority Interest
MinorityInterest
-124900000 USD
us-gaap Policyholder Benefits And Claims Incurred Net
PolicyholderBenefitsAndClaimsIncurredNet
0 USD
us-gaap Loss Contingency Disclosures
LossContingencyDisclosures
Contingencies<div style="line-height:120%;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">NSM Contingent Liability </span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">In connection with White Mountains’s acquisition of NSM, White Mountains and NSM entered into an agreement with AIG to help facilitate a sale of NSM’s U.S. collector car renewal rights owned by AIG to a third party by December 31, 2019. Under the terms of the agreement, if the Renewal Rights were not sold by December 31, 2019, AIG had the right to require NSM to purchase the Renewal Rights for </span><span style="font-family:inherit;font-size:10pt;"><span>$82.5 million</span></span><span style="font-family:inherit;font-size:10pt;">. On June 28, 2019, NSM acquired the Renewal Rights from AIG for </span><span style="font-family:inherit;font-size:10pt;"><span>$82.5 million</span></span><span style="font-family:inherit;font-size:10pt;">. The transaction satisfied NSM’s obligation to acquire the Renewal Rights from AIG.</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Sirius Group Tax Contingency</span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><span 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.  In October 2018, the Swedish Administrative Court ruled against Sirius Group on its appeal of the Swedish Tax Agency’s denial of certain interest deductions relating to periods prior to the sale of Sirius Group to CMI. In connection with the sale, White Mountains indemnified Sirius Group against the loss of certain tax attributes, including those related to these interest deductions. As of </span><span style="font-family:inherit;font-size:10pt;">September 30, 2019</span><span style="font-family:inherit;font-size:10pt;"> and December 31, 2018, White Mountains reported a liability of </span><span style="font-family:inherit;font-size:10pt;"><span>$15.7 million</span></span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;"><span>$17.3 million</span></span><span style="font-family:inherit;font-size:10pt;">, reflecting the value of these interest deductions. For the </span><span style="font-family:inherit;font-size:10pt;">three and nine months ended</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;">September 30, 2019</span><span style="font-family:inherit;font-size:10pt;">, the decrease in the liability of </span><span style="font-family:inherit;font-size:10pt;"><span>$0.9 million</span></span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;"><span>$1.6 million</span></span><span style="font-family:inherit;font-size:10pt;"> is related to foreign currency translation and included within net gain on sale of discontinued operations. Sirius Group has appealed the decision to the Swedish Administrative Court of Appeal.</span></div><div style="line-height:120%;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Legal Contingencies</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><span style="font-family:inherit;font-size:10pt;">White Mountains is subject to litigation and arbitration in the normal course of business. White Mountains recognizes an accrual for litigation and arbitration if it is probable that a loss has been incurred and the amount can be reasonably estimated. White Mountains discloses litigation and arbitration 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 as of </span><span style="font-family:inherit;font-size:10pt;">September 30, 2019</span> that is deemed probable of having a material adverse effect on White Mountains’s financial condition, results of operations or cash flows.
CY2019Q3 us-gaap Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax
DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
900000 USD
us-gaap Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax
DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
1600000 USD

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