$WTM
WHITE MOUNTAINS INSURANCE GROUP LTD Stock $wtm

$wtm Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-Q Financial Statement

#000077686724000019 Filed on November 06, 2024

Income Statement

Concept	2024 Q4	2024 Q3
Revenue		$839.1M
YoY Change		61.49%
Cost Of Revenue		$7.600M
YoY Change		-5.0%
Gross Profit		$831.5M
YoY Change		62.53%
Gross Profit Margin		99.09%
Selling, General & Admin		$145.4M
YoY Change		35.13%
% of Gross Profit		17.49%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization		$106.4M
YoY Change		15.15%
% of Gross Profit		12.8%
Operating Expenses		$582.9M
YoY Change		20.73%
Operating Profit		$248.6M
YoY Change		763.19%
Interest Expense		$16.70M
YoY Change		6.37%
% of Operating Profit		6.72%
Other Income/Expense, Net
YoY Change
Pretax Income		$239.5M
YoY Change		1035.07%
Income Tax		$11.60M
% Of Pretax Income		4.84%
Net Earnings		$179.0M
YoY Change		658.47%
Net Earnings / Revenue		21.33%
Basic Earnings Per Share		$69.68
Diluted Earnings Per Share		$69.68
COMMON SHARES
Basic Shares Outstanding	2.568M shares	2.568M shares
Diluted Shares Outstanding		2.533M shares

Balance Sheet

Concept	2024 Q4	2024 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$346.0M
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		$439.2M
YoY Change		160.19%
Intangibles		$286.5M
YoY Change		40.92%
Long-Term Investments		$6.774B
YoY Change		15.54%
Other Assets		$71.00M
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets		$10.34B
YoY Change		26.95%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses		$84.10M
YoY Change		0.24%
Deferred Revenue
YoY Change
Short-Term Debt		$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities		$84.10M
YoY Change		0.24%
LONG-TERM LIABILITIES
Long-Term Debt		$544.9M
YoY Change		-3.51%
Other Long-Term Liabilities		$470.8M
YoY Change		49.46%
Total Long-Term Liabilities		$1.016B
YoY Change		15.46%
TOTAL LIABILITIES
Total Short-Term Liabilities		$84.10M
Total Long-Term Liabilities		$1.016B
Total Liabilities		$5.078B
YoY Change		27.63%
SHAREHOLDERS EQUITY
Retained Earnings		$4.048B
YoY Change		18.92%
Common Stock		$2.600M
YoY Change		0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity		$4.611B
YoY Change
Total Liabilities & Shareholders Equity		$10.34B
YoY Change		26.95%

Cashflow Statement

Concept	2024 Q4	2024 Q3
OPERATING ACTIVITIES
Net Income		$179.0M
YoY Change		658.47%
Depreciation, Depletion And Amortization		$106.4M
YoY Change		15.15%
Cash From Operating Activities		$269.4M
YoY Change		20.86%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities		-$189.6M
YoY Change		-18.35%
Cash From Investing Activities		-$189.6M
YoY Change		-18.35%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities		11.00M
YoY Change		-37.5%
NET CHANGE
Cash From Operating Activities		269.4M
Cash From Investing Activities		-189.6M
Cash From Financing Activities		11.00M
Net Change In Cash		90.80M
YoY Change		993.98%
FREE CASH FLOW
Cash From Operating Activities		$269.4M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	1700000	usd
	us-gaap	Net Investment Income NetInvestmentIncome	172100000	usd
	us-gaap	Net Investment Income NetInvestmentIncome	130100000	usd
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2024Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2024Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2024Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	2568148	shares
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-1600000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	4610600000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	4240500000	usd
CY2024Q3	us-gaap	Minority Interest MinorityInterest	649200000	usd
CY2023Q4	us-gaap	Minority Interest MinorityInterest	321100000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5259800000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4561600000	usd
CY2024Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10337500000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8385900000	usd
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	140.66
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	86.82
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	255000000.0	usd
	dei	Entity Central Index Key EntityCentralIndexKey	0000776867
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2024-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity Registrant Name EntityRegistrantName	WHITE MOUNTAINS INSURANCE GROUP, LTD
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	D0
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	94-2708455
	dei	Entity Address Address Line1 EntityAddressAddressLine1	23 South Main Street, Suite 3B
	dei	Entity Address City Or Town EntityAddressCityOrTown	Hanover,
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	03755-2053
	dei	Entity Address State Or Province EntityAddressStateOrProvince	NH
	dei	City Area Code CityAreaCode	603
	dei	Local Phone Number LocalPhoneNumber	640-2200
	dei	Security12b Title Security12bTitle	Common Shares, par value $1.00 per share
	dei	Trading Symbol TradingSymbol	WTM
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2024Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	2568148	shares
CY2024Q3	us-gaap	Assets Assets	10337500000	usd
CY2023Q4	us-gaap	Assets Assets	8385900000	usd
CY2024Q3	us-gaap	Liabilities Liabilities	5077700000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	3824300000	usd
CY2024Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	2568148	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	2560452	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	2560452	shares
CY2024Q3	us-gaap	Common Stock Value CommonStockValue	2600000	usd
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	2600000	usd
CY2024Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	560700000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	548700000	usd
CY2024Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	4048300000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3690800000	usd
CY2024Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-1000000.0	usd
CY2024Q3	us-gaap	Revenues Revenues	839100000	usd
CY2023Q3	us-gaap	Revenues Revenues	519600000	usd
	us-gaap	Revenues Revenues	1881800000	usd
	us-gaap	Revenues Revenues	1429900000	usd
CY2024Q3	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	599600000	usd
CY2023Q3	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	498500000	usd
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1444400000	usd
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1192300000	usd
CY2024Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	239500000	usd
CY2023Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	21100000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	437400000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	237600000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11600000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7300000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28900000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19400000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	227900000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	13800000	usd
	us-gaap	Profit Loss ProfitLoss	408500000	usd
	us-gaap	Profit Loss ProfitLoss	218200000	usd
CY2024Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	48900000	usd
CY2023Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-9800000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	47700000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-4500000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	179000000.0	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	23600000	usd
	us-gaap	Net Income Loss NetIncomeLoss	360800000	usd
	us-gaap	Net Income Loss NetIncomeLoss	222700000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	179000000.0	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	23600000	usd
	us-gaap	Net Income Loss NetIncomeLoss	360800000	usd
	us-gaap	Net Income Loss NetIncomeLoss	222700000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1300000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1700000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1100000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	900000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	180300000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	21900000	usd
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	361900000	usd
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	223600000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	500000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-700000	usd
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	500000	usd
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	100000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	179800000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	22600000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	361400000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	223500000	usd
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	69.68
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	9.19
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	140.66
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	86.82
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	69.68
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	9.19
CY2024Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0
CY2024Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2023Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0
CY2023Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.00
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.00
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.00
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.00
	us-gaap	Profit Loss ProfitLoss	408500000	usd
	us-gaap	Profit Loss ProfitLoss	218200000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	47500000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	16800000	usd
	wtm	Gain Loss On Fair Value Adjustment Of Surplus Notes GainLossOnFairValueAdjustmentOfSurplusNotes	15800000	usd
	wtm	Gain Loss On Fair Value Adjustment Of Surplus Notes GainLossOnFairValueAdjustmentOfSurplusNotes	0	usd
	us-gaap	Deconsolidation Gain Or Loss Amount DeconsolidationGainOrLossAmount	-114500000	usd
	us-gaap	Deconsolidation Gain Or Loss Amount DeconsolidationGainOrLossAmount	0	usd
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	3700000	usd
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	1900000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	11800000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	11200000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	-7500000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	-10300000	usd
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	306000000.0	usd
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	-56900000	usd
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	454300000	usd
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	236400000	usd
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	58200000	usd
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	54000000.0	usd
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	544400000	usd
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	275300000	usd
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	458500000	usd
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	375400000	usd
	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	149100000	usd
	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	-104800000	usd
	wtm	Increase Decrease In Premiums And Commissions Payable IncreaseDecreaseInPremiumsAndCommissionsPayable	44500000	usd
	wtm	Increase Decrease In Premiums And Commissions Payable IncreaseDecreaseInPremiumsAndCommissionsPayable	0	usd
	wtm	Payments For Participation Contracts PaymentsForParticipationContracts	200000	usd
	wtm	Payments For Participation Contracts PaymentsForParticipationContracts	108300000	usd
	wtm	Proceeds From Sale Of Participation Contracts ProceedsFromSaleOfParticipationContracts	9400000	usd
	wtm	Proceeds From Sale Of Participation Contracts ProceedsFromSaleOfParticipationContracts	74600000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	28900000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-14300000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	522700000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	379600000	usd
	wtm	Payments For Proceeds From Other Short Term Investments PaymentsForProceedsFromOtherShortTermInvestments	-610800000	usd
	wtm	Payments For Proceeds From Other Short Term Investments PaymentsForProceedsFromOtherShortTermInvestments	194900000	usd
	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	320900000	usd
	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	107900000	usd
	us-gaap	Proceeds From Maturities Repayments And Calls Of Trading Securities Heldforinvestment ProceedsFromMaturitiesRepaymentsAndCallsOfTradingSecuritiesHeldforinvestment	323300000	usd
	us-gaap	Proceeds From Maturities Repayments And Calls Of Trading Securities Heldforinvestment ProceedsFromMaturitiesRepaymentsAndCallsOfTradingSecuritiesHeldforinvestment	212600000	usd
	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	162400000	usd
	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	129900000	usd
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	169900000	usd
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	26800000	usd
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	usd
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	17300000	usd
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	44900000	usd
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0.0	usd
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	231800000	usd
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
	wtm	Payments To Acquire Trading Fixed Maturities Investments PaymentsToAcquireTradingFixedMaturitiesInvestments	1342000000	usd
	wtm	Payments To Acquire Trading Fixed Maturities Investments PaymentsToAcquireTradingFixedMaturitiesInvestments	392900000	usd
	wtm	Payments To Acquire Equity Securities And Equity Method Investments PaymentsToAcquireEquitySecuritiesAndEquityMethodInvestments	121100000	usd
	wtm	Payments To Acquire Equity Securities And Equity Method Investments PaymentsToAcquireEquitySecuritiesAndEquityMethodInvestments	114200000	usd
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	158200000	usd
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	237700000	usd
	us-gaap	Cash Divested From Deconsolidation CashDivestedFromDeconsolidation	4200000	usd
	us-gaap	Cash Divested From Deconsolidation CashDivestedFromDeconsolidation	0	usd
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	13800000	usd
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	9800000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-283800000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-455000000.0	usd
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	15500000	usd
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	12200000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	36700000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	24300000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	2500000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	2600000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	8100000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	32700000	usd
	wtm	Proceeds From Member Surplus Contributions ProceedsFromMemberSurplusContributions	26000000.0	usd
	wtm	Proceeds From Member Surplus Contributions ProceedsFromMemberSurplusContributions	46400000	usd
	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	-11500000	usd
	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	-5300000	usd
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	2000000.0	usd
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-10500000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-15300000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-16800000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Continuing Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContinuingOperations	223600000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Continuing Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContinuingOperations	-92200000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	700000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	12200000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	122400000	usd
CY2024Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	71000000.0	usd
CY2023Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	0.0	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	346000000.0	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	162800000	usd
	us-gaap	Interest Paid Net InterestPaidNet	46400000	usd
	us-gaap	Interest Paid Net InterestPaidNet	18000000.0	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	19200000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	29900000	usd
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
	wtm	Management Rollover Shareholders Additional Shares Percentage ManagementRolloverShareholdersAdditionalSharesPercentage	0.123
CY2024Q3	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	58400000	usd
CY2023Q3	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	48800000	usd
	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	174300000	usd
	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	131800000	usd
CY2024Q3	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	700000	usd
CY2023Q3	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	700000	usd
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	2200000	usd
CY2024Q3	us-gaap	Net Investment Income NetInvestmentIncome	57700000	usd
CY2023Q3	us-gaap	Net Investment Income NetInvestmentIncome	48100000	usd
CY2024Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	223800000	usd
CY2023Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	-58300000	usd
	us-gaap	Gain Loss On Investments GainLossOnInvestments	390400000	usd
	us-gaap	Gain Loss On Investments GainLossOnInvestments	151200000	usd
CY2024Q3	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	537000000.0	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain EquitySecuritiesFvNiUnrealizedGain	120200000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Loss EquitySecuritiesFvNiUnrealizedLoss	0	usd
	wtm	Equity Securities Fnni Net Foreign Currency Gain Loss EquitySecuritiesFNNINetForeignCurrencyGainLoss	-1800000	usd
CY2024Q3	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	655400000	usd
CY2024Q3	wtm	Other Long Term Investments Cost OtherLongTermInvestmentsCost	1638600000	usd
	wtm	Other Long Term Investments Unrealized Gain OtherLongTermInvestmentsUnrealizedGain	547900000	usd
	wtm	Other Long Term Investments Unrealized Loss OtherLongTermInvestmentsUnrealizedLoss	108300000	usd
	wtm	Other Long Term Investments Net Foreign Currency Gain Loss OtherLongTermInvestmentsNetForeignCurrencyGainLoss	-7100000	usd
CY2024Q3	us-gaap	Other Long Term Investments OtherLongTermInvestments	2071100000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	483500000	usd
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain EquitySecuritiesFvNiUnrealizedGain	62300000	usd
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Loss EquitySecuritiesFvNiUnrealizedLoss	1200000	usd
CY2023	wtm	Equity Securities Fnni Net Foreign Currency Gain Loss EquitySecuritiesFNNINetForeignCurrencyGainLoss	-6200000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	538400000	usd
CY2023Q4	wtm	Other Long Term Investments Cost OtherLongTermInvestmentsCost	1655700000	usd
CY2023	wtm	Other Long Term Investments Unrealized Gain OtherLongTermInvestmentsUnrealizedGain	446300000	usd
CY2023	wtm	Other Long Term Investments Unrealized Loss OtherLongTermInvestmentsUnrealizedLoss	94500000	usd
CY2023	wtm	Other Long Term Investments Net Foreign Currency Gain Loss OtherLongTermInvestmentsNetForeignCurrencyGainLoss	-9300000	usd
CY2023Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	1998200000	usd
CY2024Q3	wtm	Funds Held Under Reinsurance Agreements Assets Investments FundsHeldUnderReinsuranceAgreementsAssetsInvestments	641400000	usd
CY2023Q4	wtm	Funds Held Under Reinsurance Agreements Assets Investments FundsHeldUnderReinsuranceAgreementsAssetsInvestments	585600000	usd
CY2024Q3	us-gaap	Other Long Term Investments OtherLongTermInvestments	2071100000	usd
CY2023Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	1998200000	usd
CY2024Q3	wtm	Other Long Term Investments Remaining Period One To Three Years OtherLongTermInvestmentsRemainingPeriodOneToThreeYears	18500000	usd
CY2024Q3	wtm	Other Long Term Investments Remaining Period Three To Five Years OtherLongTermInvestmentsRemainingPeriodThreeToFiveYears	55900000	usd
CY2024Q3	wtm	Other Long Term Investments Remaining Period Five To Ten Years OtherLongTermInvestmentsRemainingPeriodFiveToTenYears	184500000	usd
CY2024Q3	wtm	Other Long Term Investments Remaining Period Greater Than10 Years OtherLongTermInvestmentsRemainingPeriodGreaterThan10Years	3100000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	439200000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	439200000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	168800000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	168800000	usd
CY2024Q3	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	320100000	usd
CY2023Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	218800000	usd
CY2024Q3	wtm	Intangible Assets Gross Including Goodwill IntangibleAssetsGrossIncludingGoodwill	759300000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	33600000	usd
CY2024Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	725700000	usd
CY2023Q4	wtm	Intangible Assets Gross Including Goodwill IntangibleAssetsGrossIncludingGoodwill	387600000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	17000000.0	usd
CY2023Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	370600000	usd
	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	usd
CY2023Q3	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	usd
CY2024Q3	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	usd
	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	usd
CY2024Q2	us-gaap	Goodwill Goodwill	439200000	usd
CY2024Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	291800000	usd
CY2024Q2	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	731000000.0	usd
CY2023Q2	us-gaap	Goodwill Goodwill	168800000	usd
CY2023Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	204800000	usd
CY2023Q2	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	373600000	usd
CY2024Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5300000	usd
CY2024Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5300000	usd
CY2023Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1500000	usd
CY2023Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1500000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	439200000	usd
CY2024Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	286500000	usd
CY2024Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	725700000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	168800000	usd
CY2023Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	203300000	usd
CY2023Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	372100000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	168800000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	201800000	usd
CY2023Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	370600000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	176500000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	215900000	usd
CY2022Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	392400000	usd
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	270400000	usd
	us-gaap	Indefinitelived Intangible Assets Acquired IndefinitelivedIntangibleAssetsAcquired	101000000.0	usd
	wtm	Goodwill And Indefinite Lived Intangible Assets Acquired During Period GoodwillAndIndefiniteLivedIntangibleAssetsAcquiredDuringPeriod	371400000	usd
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	usd
	us-gaap	Indefinitelived Intangible Assets Acquired IndefinitelivedIntangibleAssetsAcquired	0	usd
	wtm	Goodwill And Indefinite Lived Intangible Assets Acquired During Period GoodwillAndIndefiniteLivedIntangibleAssetsAcquiredDuringPeriod	0	usd
	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	300000	usd
	wtm	Goodwill And Finite Lived Intangible Assets Acquired During Period GoodwillAndFiniteLivedIntangibleAssetsAcquiredDuringPeriod	300000	usd
	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	0	usd
	wtm	Goodwill And Finite Lived Intangible Assets Acquired During Period GoodwillAndFiniteLivedIntangibleAssetsAcquiredDuringPeriod	0	usd
	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	0	usd
	us-gaap	Indefinite Lived Intangible Assets Written Off Related To Sale Of Business Unit IndefiniteLivedIntangibleAssetsWrittenOffRelatedToSaleOfBusinessUnit	0	usd
	wtm	Goodwill And Indefinite Lived Intangible Assets Written Off Related To Sale Of Business Unit GoodwillAndIndefiniteLivedIntangibleAssetsWrittenOffRelatedToSaleOfBusinessUnit	0	usd
	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	6700000	usd
	us-gaap	Indefinite Lived Intangible Assets Written Off Related To Sale Of Business Unit IndefiniteLivedIntangibleAssetsWrittenOffRelatedToSaleOfBusinessUnit	6900000	usd
	wtm	Goodwill And Indefinite Lived Intangible Assets Written Off Related To Sale Of Business Unit GoodwillAndIndefiniteLivedIntangibleAssetsWrittenOffRelatedToSaleOfBusinessUnit	13600000	usd
	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	0	usd
	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	0	usd
	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-1000000.0	usd
	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-1000000.0	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	16600000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	16600000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5700000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5700000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	439200000	usd
CY2024Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	286500000	usd
CY2024Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	725700000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	168800000	usd
CY2023Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	203300000	usd
CY2023Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	372100000	usd
	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table summarizes the loss and loss adjustment expense (“LAE”) reserve activity of the Ark/WM Outrigger segment</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">for the three and nine months ended September 30, 2024 and 2023: </span></div><div style="text-indent:36pt"><span><br/></span></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:46.847%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.363%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.216%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.070%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.072%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="9" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended September 30,</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="9" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Nine Months Ended September 30,</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Millions</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2024</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2024</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023</span></td></tr><tr><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gross beginning balance</span></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">1,890.1</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,421.0 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">1,605.1</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,296.5 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Less: beginning reinsurance recoverable on unpaid losses </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:400;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(458.5)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(362.7)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(340.8)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(505.0)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss and loss adjustment expense reserves</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">1,431.6</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,058.3 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">1,264.3</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">791.5 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss and loss adjustment expenses incurred relating to:</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current year losses</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">313.1</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">266.4 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">676.0</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">562.1 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Prior year losses</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(24.8)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(.6)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(32.0)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">19.0 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net incurred loss and loss adjustment expenses</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">288.3</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">265.8 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">644.0</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">581.1 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss and loss adjustment expenses paid relating to:</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current year losses</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(19.1)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(8.8)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(27.4)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(18.4)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Prior year losses</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(86.3)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(90.4)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(261.8)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(281.1)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net paid loss and loss adjustment expenses</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(105.4)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(99.2)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(289.2)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(299.5)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Change in TPC Providers’ participation </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:400;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(2)</span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">145.4 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Foreign currency translation and other adjustments to loss<br/> and loss adjustment expense reserves</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">11.3</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(5.5)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">6.7</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">.9 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net ending balance</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">1,625.8</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,219.4 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">1,625.8</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,219.4 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Plus: ending reinsurance recoverable on unpaid losses</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">507.2</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">352.4 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">507.2</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">352.4 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="border-bottom:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gross ending balance</span></td><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2,133.0</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,571.8 </span></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2,133.0</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,571.8 </span></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-top:3pt;padding-left:9pt;text-indent:-9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:400;line-height:120%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:120%"> The beginning reinsurance recoverable on unpaid losses includes amounts attributable to TPC Providers of $145.4 as of December 31, 2022.</span></div><div style="padding-left:9pt;text-indent:-9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:400;line-height:120%;position:relative;top:-2.8pt;vertical-align:baseline">(2)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:120%"> Amount represents the impact to net loss and loss adjustment expense reserves due to a change in the TPC Providers’ participation related to the annual RITC process.</span></div>
CY2024Q3	wtm	Loss Adjustment Expense Reserves Loss On Delinquent Payment LossAdjustmentExpenseReservesLossOnDelinquentPayment	300000	usd
	wtm	Loss Adjustment Expense Reserves Loss On Delinquent Payment LossAdjustmentExpenseReservesLossOnDelinquentPayment	300000	usd
CY2024Q3	us-gaap	Long Term Debt LongTermDebt	544900000	usd
CY2023Q4	us-gaap	Long Term Debt LongTermDebt	564600000	usd
CY2023	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	-68000000	usd
CY2024Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.048
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.066
CY2023Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.346
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.082
CY2024Q3	wtm	Member Surplus Contributions Insurance Premium Charges Percentage MemberSurplusContributionsInsurancePremiumChargesPercentage	0.55
CY2024Q3	us-gaap	Funds Held Under Reinsurance Agreements Asset FundsHeldUnderReinsuranceAgreementsAsset	976400000	usd
CY2023Q4	us-gaap	Funds Held Under Reinsurance Agreements Asset FundsHeldUnderReinsuranceAgreementsAsset	948500000	usd
CY2024Q3	wtm	Funds Held Under Reinsurance Agreements Assets Cash And Investments FundsHeldUnderReinsuranceAgreementsAssetsCashAndInvestments	644700000	usd
CY2023Q4	wtm	Funds Held Under Reinsurance Agreements Assets Cash And Investments FundsHeldUnderReinsuranceAgreementsAssetsCashAndInvestments	588600000	usd
CY2024Q3	wtm	Funds Held Under Reinsurance Agreements Assets Surplus Notes FundsHeldUnderReinsuranceAgreementsAssetsSurplusNotes	317100000	usd
CY2023Q4	wtm	Funds Held Under Reinsurance Agreements Assets Surplus Notes FundsHeldUnderReinsuranceAgreementsAssetsSurplusNotes	322200000	usd
CY2024Q3	wtm	Funds Held Under Reinsurance Agreements Assets Interest Receivable FundsHeldUnderReinsuranceAgreementsAssetsInterestReceivable	14600000	usd
CY2023Q4	wtm	Funds Held Under Reinsurance Agreements Assets Interest Receivable FundsHeldUnderReinsuranceAgreementsAssetsInterestReceivable	37700000	usd
CY2023Q3	us-gaap	Direct Premiums Written DirectPremiumsWritten	16500000	usd
CY2023Q3	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	0	usd
CY2023Q3	us-gaap	Premiums Written Gross PremiumsWrittenGross	16500000	usd
CY2023Q3	us-gaap	Direct Premiums Earned DirectPremiumsEarned	7400000	usd
CY2023Q3	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	500000	usd
CY2023Q3	wtm	Gross Premiums Earned GrossPremiumsEarned	7900000	usd
	us-gaap	Direct Premiums Written DirectPremiumsWritten	24100000	usd
	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	14000000.0	usd
	us-gaap	Premiums Written Gross PremiumsWrittenGross	38100000	usd
	us-gaap	Direct Premiums Earned DirectPremiumsEarned	15800000	usd
	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	8500000	usd
	wtm	Gross Premiums Earned GrossPremiumsEarned	24300000	usd
	us-gaap	Direct Premiums Written DirectPremiumsWritten	37300000	usd
	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	0	usd
	us-gaap	Premiums Written Gross PremiumsWrittenGross	37300000	usd
	us-gaap	Direct Premiums Earned DirectPremiumsEarned	21400000	usd
	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	1900000	usd
	wtm	Gross Premiums Earned GrossPremiumsEarned	23300000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	179000000.0	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	23600000	usd
	us-gaap	Net Income Loss NetIncomeLoss	360800000	usd
	us-gaap	Net Income Loss NetIncomeLoss	222700000	usd
CY2024Q3	us-gaap	Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Basic UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic	2500000	usd
CY2023Q3	us-gaap	Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Basic UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic	300000	usd
	us-gaap	Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Basic UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic	4600000	usd
	us-gaap	Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Basic UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic	3100000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	176500000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	176500000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	23300000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	23300000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	356200000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	356200000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	219600000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	219600000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	2568100	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	2560500	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	2564800	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	2564200	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	35400	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	37600	shares
	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	32900	shares
	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	35500	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2532700	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2522900	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2531900	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2528700	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	2568100	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	2560500	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	2564800	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	2564200	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	35400	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	37600	shares
	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	32900	shares
	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	35500	shares
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2532700	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2522900	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2531900	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2528700	shares
CY2024Q3	us-gaap	Earnings Per Share Diluted Distributed EarningsPerShareDilutedDistributed	0
CY2024Q3	us-gaap	Earnings Per Share Basic Distributed EarningsPerShareBasicDistributed	0
CY2023Q3	us-gaap	Earnings Per Share Diluted Distributed EarningsPerShareDilutedDistributed	0
CY2023Q3	us-gaap	Earnings Per Share Basic Distributed EarningsPerShareBasicDistributed	0
	us-gaap	Earnings Per Share Diluted Distributed EarningsPerShareDilutedDistributed	1.00
	us-gaap	Earnings Per Share Basic Distributed EarningsPerShareBasicDistributed	1.00
	us-gaap	Earnings Per Share Basic Distributed EarningsPerShareBasicDistributed	1.00
	us-gaap	Earnings Per Share Diluted Distributed EarningsPerShareDilutedDistributed	1.00
CY2024Q3	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	69.68
CY2024Q3	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	69.68
CY2023Q3	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	9.19
CY2023Q3	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	9.19
	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	139.66
	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	139.66
	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	85.82
	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	85.82
CY2024Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	69.68
CY2024Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	69.68
CY2023Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	9.19
CY2023Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	9.19
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	140.66
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	140.66
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	86.82
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	86.82
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	176500000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	23300000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	356200000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	219600000	usd
CY2024Q3	wtm	Dividends Common Stock Cash Net Of Restricted Stock DividendsCommonStockCashNetOfRestrictedStock	0	usd
CY2023Q3	wtm	Dividends Common Stock Cash Net Of Restricted Stock DividendsCommonStockCashNetOfRestrictedStock	0	usd
	wtm	Dividends Common Stock Cash Net Of Restricted Stock DividendsCommonStockCashNetOfRestrictedStock	2500000	usd
	wtm	Dividends Common Stock Cash Net Of Restricted Stock DividendsCommonStockCashNetOfRestrictedStock	2500000	usd
CY2024Q3	us-gaap	Undistributed Continuing Operation Earnings Loss Basic UndistributedContinuingOperationEarningsLossBasic	176500000	usd
CY2023Q3	us-gaap	Undistributed Continuing Operation Earnings Loss Basic UndistributedContinuingOperationEarningsLossBasic	23300000	usd
	us-gaap	Undistributed Continuing Operation Earnings Loss Basic UndistributedContinuingOperationEarningsLossBasic	353700000	usd
	us-gaap	Undistributed Continuing Operation Earnings Loss Basic UndistributedContinuingOperationEarningsLossBasic	217100000	usd
CY2024Q2	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShares	34992	shares
CY2024Q2	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiability	52000000.0	usd
CY2023Q2	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShares	37031	shares
CY2023Q2	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiability	44600000	usd
CY2023Q4	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShares	37031	shares
CY2023Q4	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiability	69400000	usd
CY2022Q4	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShares	39449	shares
CY2022Q4	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiability	67500000	usd
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Shares Paid In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesSharesPaidInPeriod	0	shares
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Shares Paid In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilitySharesPaidInPeriod	0	usd
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Shares Paid In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesSharesPaidInPeriod	0	shares
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Shares Paid In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilitySharesPaidInPeriod	0	usd
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Shares Paid In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesSharesPaidInPeriod	13475	shares
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Shares Paid In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilitySharesPaidInPeriod	44900000	usd
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Shares Paid In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesSharesPaidInPeriod	13350	shares
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Shares Paid In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilitySharesPaidInPeriod	40800000	usd
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesGrantsInPeriod	0	shares
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityGrantsInPeriod	0	usd
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesGrantsInPeriod	0	shares
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityGrantsInPeriod	0	usd
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesGrantsInPeriod	11405	shares
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityGrantsInPeriod	0	usd
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesGrantsInPeriod	10895	shares
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityGrantsInPeriod	0	usd
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Forfeited And Cancelled In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesForfeitedAndCancelledInPeriod	133	shares
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Forfeited And Cancelled In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityForfeitedAndCancelledInPeriod	0	usd
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Forfeited And Cancelled In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesForfeitedAndCancelledInPeriod	0	shares
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Forfeited And Cancelled In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityForfeitedAndCancelledInPeriod	0	usd
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Forfeited And Cancelled In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesForfeitedAndCancelledInPeriod	102	shares
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Forfeited And Cancelled In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityForfeitedAndCancelledInPeriod	-300000	usd
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Forfeited And Cancelled In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesForfeitedAndCancelledInPeriod	-37	shares
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Forfeited And Cancelled In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityForfeitedAndCancelledInPeriod	-200000	usd
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Expense In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityExpenseInPeriod	3700000	usd
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Expense In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityExpenseInPeriod	10500000	usd
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Expense In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityExpenseInPeriod	30900000	usd
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Expense In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityExpenseInPeriod	28200000	usd
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShares	34859	shares
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiability	55700000	usd
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShares	37031	shares
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiability	55100000	usd
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShares	34859	shares
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiability	55700000	usd
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShares	37031	shares
CY2023Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiability	55100000	usd
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesGrantsInPeriod	11405	shares
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CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Nonvested Number Before Assumed Forfeitures ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesNonvestedNumberBeforeAssumedForfeitures	35390	shares
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Before Assumed Forfeitures ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityBeforeAssumedForfeitures	56500000	usd
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesForfeitedInPeriod	531	shares
	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiabilityForfeitedInPeriod	800000	usd
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShares	34859	shares
CY2024Q3	wtm	Share Based Compensation Arrangement By Share Based Payment Award Performance Shares Accrued Liability ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesAccruedLiability	55700000	usd
CY2024Q3	us-gaap	Minority Interest MinorityInterest	649200000	usd
CY2023Q4	us-gaap	Minority Interest MinorityInterest	321100000	usd
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
CY2024Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	581500000	usd
CY2024Q3	us-gaap	Net Investment Income NetInvestmentIncome	57700000	usd
CY2024Q3	us-gaap	Interest Income Operating InterestIncomeOperating	7900000	usd
CY2024Q3	wtm	Gain Loss On Fair Value Adjustment Of Surplus Notes GainLossOnFairValueAdjustmentOfSurplusNotes	15800000	usd
CY2024Q3	us-gaap	Deconsolidation Gain Or Loss Amount DeconsolidationGainOrLossAmount	-114500000	usd
CY2024Q3	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	46800000	usd
CY2024Q3	us-gaap	Other Income OtherIncome	20100000	usd
CY2024Q3	us-gaap	Revenues Revenues	839100000	usd
CY2024Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	296900000	usd
CY2024Q3	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	106400000	usd
CY2024Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7600000	usd
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CY2024Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	121900000	usd
CY2024Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	34200000	usd
CY2024Q3	us-gaap	Interest Expense InterestExpense	16700000	usd
CY2024Q3	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	599600000	usd
CY2024Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	239500000	usd
CY2023Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	506800000	usd
CY2023Q3	us-gaap	Net Investment Income NetInvestmentIncome	48100000	usd
CY2023Q3	us-gaap	Investment Income Net InvestmentIncomeNet	0	usd
CY2023Q3	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	3500000	usd
CY2023Q3	us-gaap	Other Income OtherIncome	19500000	usd
CY2023Q3	us-gaap	Revenues Revenues	519600000	usd
CY2023Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	265800000	usd
CY2023Q3	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	92400000	usd
CY2023Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	8000000.0	usd
CY2023Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	99600000	usd
CY2023Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	17000000.0	usd
CY2023Q3	us-gaap	Interest Expense InterestExpense	15700000	usd
CY2023Q3	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	498500000	usd
CY2023Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	21100000	usd
	us-gaap	Premiums Earned Net PremiumsEarnedNet	1244400000	usd
	us-gaap	Net Investment Income NetInvestmentIncome	172100000	usd
	us-gaap	Investment Income Net InvestmentIncomeNet	7900000	usd
	wtm	Gain Loss On Fair Value Adjustment Of Surplus Notes GainLossOnFairValueAdjustmentOfSurplusNotes	15800000	usd
	us-gaap	Deconsolidation Gain Or Loss Amount DeconsolidationGainOrLossAmount	-114500000	usd
	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	108400000	usd
	us-gaap	Other Income OtherIncome	57300000	usd
	us-gaap	Revenues Revenues	1881800000	usd
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	666600000	usd
	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	253900000	usd
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	22200000	usd
	wtm	Broker Commission Expense BrokerCommissionExpense	37900000	usd
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	369600000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	47500000	usd
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	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1444400000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	437400000	usd
	us-gaap	Premiums Earned Net PremiumsEarnedNet	1070600000	usd
	us-gaap	Net Investment Income NetInvestmentIncome	130100000	usd
	us-gaap	Investment Income Net InvestmentIncomeNet	0	usd
	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	10000000.0	usd
	us-gaap	Other Income OtherIncome	68000000.0	usd
	us-gaap	Revenues Revenues	1429900000	usd
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	581100000	usd
	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	217800000	usd
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	33500000	usd
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	298200000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	16800000	usd
	us-gaap	Interest Expense InterestExpense	44900000	usd
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1192300000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	237600000	usd
CY2024Q3	us-gaap	Funds Held Under Reinsurance Agreements Asset FundsHeldUnderReinsuranceAgreementsAsset	976400000	usd
CY2024Q3	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	19700000	usd
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	57900000	usd
CY2023Q3	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	13200000	usd
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	42100000	usd

Files In Submission

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0000776867-24-000019-index.html	Edgar Link	pending
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$WTM
WHITE MOUNTAINS INSURANCE GROUP LTD Stock $wtm

2024 Q4 Form 10-Q Financial Statement

#000077686724000019 Filed on November 06, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WTM WHITE MOUNTAINS INSURANCE GROUP LTD Stock $wtm

2024 Q4 Form 10-Q Financial Statement

#000077686724000019 Filed on November 06, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WTM
WHITE MOUNTAINS INSURANCE GROUP LTD Stock $wtm