$WTM
WHITE MOUNTAINS INSURANCE GROUP LTD

2020 Q4 Form 10-K Financial Statement

#000077686721000004 Filed on February 26, 2021

View on sec.gov

Income Statement

Concept 2020 Q4 2019 Q4 2019 Q3
Revenue $520.8M $175.3M $155.5M
YoY Change 197.09% 2821.67% -21.74%
Cost Of Revenue $2.300M
YoY Change -96.34%
Gross Profit $153.2M
YoY Change 12.81%
Gross Profit Margin 98.52%
Selling, General & Admin $144.0M $109.3M $95.60M
YoY Change 31.75% -21.48% -32.82%
% of Gross Profit 62.4%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $14.40M $9.300M $1.400M
YoY Change 54.84% 57.63% 16.67%
% of Gross Profit 0.91%
Operating Expenses $156.9M $117.4M $101.7M
YoY Change 33.65% -19.92% -32.65%
Operating Profit $51.50M
YoY Change -438.82%
Interest Expense -$6.600M -$1.400M -$2.700M
YoY Change 371.43% -60.0% -20.59%
% of Operating Profit -5.24%
Other Income/Expense, Net
YoY Change
Pretax Income $357.3M $56.50M $51.10M
YoY Change 532.39% -139.21% 15.35%
Income Tax -$117.6M $10.40M $8.800M
% Of Pretax Income -32.91% 18.41% 17.22%
Net Earnings $489.2M $60.90M $48.70M
YoY Change 703.28% -144.29% 59.15%
Net Earnings / Revenue 93.93% 34.74% 31.32%
Basic Earnings Per Share $157.70 $19.12 $15.29
Diluted Earnings Per Share $157.70 $19.12 $15.29
COMMON SHARES
Basic Shares Outstanding 3.102M shares 3.185M shares 3.142M shares
Diluted Shares Outstanding 3.142M shares

Balance Sheet

Concept 2020 Q4 2019 Q4 2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents $84.60M $161.0M $149.2M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets $3.000M
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment $38.00M $23.00M $23.00M
YoY Change 65.22%
Goodwill $525.5M $394.7M $424.8M
YoY Change 33.14% 3.9% 32.17%
Intangibles
YoY Change
Long-Term Investments $2.939B $2.947B $2.842B
YoY Change -0.27% 15.89% 6.08%
Other Assets $649.0M $3.000M $3.000M
YoY Change 21533.33% 0.0% 0.0%
Total Long-Term Assets $4.828B
YoY Change
TOTAL ASSETS
Total Short-Term Assets $3.000M
Total Long-Term Assets $4.828B
Total Assets $4.831B $3.983B $3.836B
YoY Change 21.29% 18.46% 12.08%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses $134.0M $100.0M $87.00M
YoY Change 34.0% 156.41% 117.5%
Deferred Revenue
YoY Change
Short-Term Debt $0.00 $0.00 $0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities $134.0M $100.0M $91.00M
YoY Change 34.0% 36.99% -7.14%
LONG-TERM LIABILITIES
Long-Term Debt $376.0M $284.0M $230.0M
YoY Change 32.39% 47.15% 40.24%
Other Long-Term Liabilities $152.0M $155.0M $148.0M
YoY Change -1.94% 24.0% 38.32%
Total Long-Term Liabilities $528.0M $439.0M $378.0M
YoY Change 20.27% 38.05% 39.48%
TOTAL LIABILITIES
Total Short-Term Liabilities $134.0M $100.0M $91.00M
Total Long-Term Liabilities $528.0M $439.0M $378.0M
Total Liabilities $1.014B $838.5M $765.4M
YoY Change 20.87% 30.12% 31.24%
SHAREHOLDERS EQUITY
Retained Earnings $3.311B $2.672B $2.612B
YoY Change 23.9% 17.99% 8.48%
Common Stock $595.2M $596.3M $593.2M
YoY Change -0.18% 2.11% 2.36%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $3.906B $3.262B $3.193B
YoY Change
Total Liabilities & Shareholders Equity $4.831B $3.983B $3.836B
YoY Change 21.29% 18.46% 12.08%

Cashflow Statement

Concept 2020 Q4 2019 Q4 2019 Q3
OPERATING ACTIVITIES
Net Income $489.2M $60.90M $48.70M
YoY Change 703.28% -144.29% 59.15%
Depreciation, Depletion And Amortization $14.40M $9.300M $1.400M
YoY Change 54.84% 57.63% 16.67%
Cash From Operating Activities -$72.80M -$48.00M -$74.30M
YoY Change 51.67% 7900.0% 1356.86%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities $36.60M $600.0K $52.10M
YoY Change 6000.0% -101.22% -354.15%
Cash From Investing Activities $36.60M $600.0K $52.10M
YoY Change 6000.0% -101.22% -387.85%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 35.20M 57.80M 21.70M
YoY Change -39.1% 20.67% 342.86%
NET CHANGE
Cash From Operating Activities -72.80M -48.00M -74.30M
Cash From Investing Activities 36.60M 600.0K 52.10M
Cash From Financing Activities 35.20M 57.80M 21.70M
Net Change In Cash -1.000M 10.40M -500.0K
YoY Change -109.62% -647.37% -97.27%
FREE CASH FLOW
Cash From Operating Activities -$72.80M -$48.00M -$74.30M
Capital Expenditures
Free Cash Flow
YoY Change

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CY2018 wtm Proceeds From Sale Of Trading Fixed Maturity And Convertible Fixed Maturity Investments
ProceedsFromSaleOfTradingFixedMaturityAndConvertibleFixedMaturityInvestments
1848500000 USD
CY2020 wtm Proceeds From Maturities Of Trading Fixed Maturity And Convertible Fixed Maturity Investments
ProceedsFromMaturitiesOfTradingFixedMaturityAndConvertibleFixedMaturityInvestments
180400000 USD
CY2019 wtm Proceeds From Maturities Of Trading Fixed Maturity And Convertible Fixed Maturity Investments
ProceedsFromMaturitiesOfTradingFixedMaturityAndConvertibleFixedMaturityInvestments
119300000 USD
CY2020 wtm Proceeds From Sale Of Trading Common Equity Securities
ProceedsFromSaleOfTradingCommonEquitySecurities
787900000 USD
CY2019 wtm Proceeds From Sale Of Trading Common Equity Securities
ProceedsFromSaleOfTradingCommonEquitySecurities
467200000 USD
CY2018 wtm Proceeds From Sale Of Trading Common Equity Securities
ProceedsFromSaleOfTradingCommonEquitySecurities
169900000 USD
CY2020 us-gaap Proceeds From Sale And Maturity Of Other Investments
ProceedsFromSaleAndMaturityOfOtherInvestments
69900000 USD
CY2019 us-gaap Proceeds From Sale And Maturity Of Other Investments
ProceedsFromSaleAndMaturityOfOtherInvestments
29400000 USD
CY2018 us-gaap Proceeds From Sale And Maturity Of Other Investments
ProceedsFromSaleAndMaturityOfOtherInvestments
5000000.0 USD
CY2020 us-gaap Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
76800000 USD
CY2019 us-gaap Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
177700000 USD
CY2018 us-gaap Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
95900000 USD
CY2020 wtm Payments To Acquire Trading Common Equity Securities
PaymentsToAcquireTradingCommonEquitySecurities
33800000 USD
CY2019 us-gaap Cash Acquired From Acquisition
CashAcquiredFromAcquisition
12800000 USD
CY2020 wtm Payments To Acquire Trading Fixed Maturity And Convertible Fixed Maturity Investments
PaymentsToAcquireTradingFixedMaturityAndConvertibleFixedMaturityInvestments
537700000 USD
CY2019 wtm Payments To Acquire Trading Fixed Maturity And Convertible Fixed Maturity Investments
PaymentsToAcquireTradingFixedMaturityAndConvertibleFixedMaturityInvestments
539200000 USD
CY2018 wtm Payments To Acquire Trading Fixed Maturity And Convertible Fixed Maturity Investments
PaymentsToAcquireTradingFixedMaturityAndConvertibleFixedMaturityInvestments
970200000 USD
CY2020 us-gaap Cash Acquired From Acquisition
CashAcquiredFromAcquisition
13400000 USD
CY2018 us-gaap Cash Acquired From Acquisition
CashAcquiredFromAcquisition
90900000 USD
CY2020 wtm Restricted Cash Acquired From Acquisition
RestrictedCashAcquiredFromAcquisition
8400000 USD
CY2019 wtm Restricted Cash Acquired From Acquisition
RestrictedCashAcquiredFromAcquisition
0.0 USD
CY2018 wtm Restricted Cash Acquired From Acquisition
RestrictedCashAcquiredFromAcquisition
53400000 USD
CY2020 us-gaap Payments To Acquire Businesses And Interest In Affiliates
PaymentsToAcquireBusinessesAndInterestInAffiliates
127300000 USD
CY2019 us-gaap Payments To Acquire Businesses And Interest In Affiliates
PaymentsToAcquireBusinessesAndInterestInAffiliates
258000000.0 USD
CY2018 us-gaap Payments To Acquire Businesses And Interest In Affiliates
PaymentsToAcquireBusinessesAndInterestInAffiliates
295200000 USD
CY2020 wtm Payment For Escrow In Acquisition Transaction
PaymentForEscrowInAcquisitionTransaction
646300000 USD
CY2019 wtm Payment For Escrow In Acquisition Transaction
PaymentForEscrowInAcquisitionTransaction
0 USD
CY2018 wtm Payment For Escrow In Acquisition Transaction
PaymentForEscrowInAcquisitionTransaction
0 USD
CY2020 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
400000 USD
CY2019 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
27300000 USD
CY2018 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
-23400000 USD
CY2020 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
64600000 USD
CY2019 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-59900000 USD
CY2018 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
459200000 USD
CY2020 us-gaap Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
84600000 USD
CY2019 us-gaap Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
206400000 USD
CY2018 us-gaap Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
84100000 USD
CY2020 us-gaap Repayments Of Debt
RepaymentsOfDebt
4500000 USD
CY2019 us-gaap Repayments Of Debt
RepaymentsOfDebt
22900000 USD
CY2018 us-gaap Repayments Of Debt
RepaymentsOfDebt
15400000 USD
CY2020 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
3200000 USD
CY2019 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
3200000 USD
CY2018 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
3800000 USD
CY2020 wtm Acquisitionsof Additional Shares From Non Controlling Interest
AcquisitionsofAdditionalSharesFromNonControllingInterest
0 USD
CY2019 wtm Acquisitionsof Additional Shares From Non Controlling Interest
AcquisitionsofAdditionalSharesFromNonControllingInterest
0 USD
CY2018 wtm Acquisitionsof Additional Shares From Non Controlling Interest
AcquisitionsofAdditionalSharesFromNonControllingInterest
1700000 USD
CY2020 us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
78500000 USD
CY2019 us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
0 USD
CY2018 us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
511900000 USD
CY2020 wtm Repurchaseof Shares From Noncontrolling Interest Shareholders
RepurchaseofSharesFromNoncontrollingInterestShareholders
500000 USD
CY2019 wtm Repurchaseof Shares From Noncontrolling Interest Shareholders
RepurchaseofSharesFromNoncontrollingInterestShareholders
21100000 USD
CY2018 wtm Repurchaseof Shares From Noncontrolling Interest Shareholders
RepurchaseofSharesFromNoncontrollingInterestShareholders
0 USD
CY2020 wtm Proceeds From Issuanceof Sharesto Noncontrolling Interest Shareholders
ProceedsFromIssuanceofSharestoNoncontrollingInterestShareholders
0 USD
CY2019 wtm Proceeds From Issuanceof Sharesto Noncontrolling Interest Shareholders
ProceedsFromIssuanceofSharestoNoncontrollingInterestShareholders
62700000 USD
CY2018 wtm Proceeds From Issuanceof Sharesto Noncontrolling Interest Shareholders
ProceedsFromIssuanceofSharestoNoncontrollingInterestShareholders
0 USD
CY2020 us-gaap Proceeds From Partnership Contribution
ProceedsFromPartnershipContribution
2400000 USD
CY2019 us-gaap Proceeds From Partnership Contribution
ProceedsFromPartnershipContribution
1900000 USD
CY2018 us-gaap Proceeds From Partnership Contribution
ProceedsFromPartnershipContribution
1300000 USD
CY2020 us-gaap Payments Of Capital Distribution
PaymentsOfCapitalDistribution
700000 USD
CY2019 us-gaap Payments Of Capital Distribution
PaymentsOfCapitalDistribution
28100000 USD
CY2018 us-gaap Payments Of Capital Distribution
PaymentsOfCapitalDistribution
6000000.0 USD
CY2020 us-gaap Payment For Contingent Consideration Liability Financing Activities
PaymentForContingentConsiderationLiabilityFinancingActivities
7000000.0 USD
CY2019 us-gaap Payment For Contingent Consideration Liability Financing Activities
PaymentForContingentConsiderationLiabilityFinancingActivities
7600000 USD
CY2018 us-gaap Payment For Contingent Consideration Liability Financing Activities
PaymentForContingentConsiderationLiabilityFinancingActivities
2600000 USD
CY2020 wtm Members Capital Contribution
MembersCapitalContribution
68900000 USD
CY2019 wtm Members Capital Contribution
MembersCapitalContribution
54600000 USD
CY2018 wtm Members Capital Contribution
MembersCapitalContribution
53800000 USD
CY2020 wtm Fidus Re Premium Payment
FidusRePremiumPayment
3000000.0 USD
CY2019 wtm Fidus Re Premium Payment
FidusRePremiumPayment
3000000.0 USD
CY2018 wtm Fidus Re Premium Payment
FidusRePremiumPayment
3700000 USD
CY2020 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-9500000 USD
CY2019 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-9200000 USD
CY2018 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-8400000 USD
CY2020 us-gaap Net Cash Provided By Used In Financing Activities
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49000000.0 USD
CY2019 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
230500000 USD
CY2018 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-414300000 USD
CY2020 us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
-2800000 USD
CY2019 us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
600000 USD
CY2019Q4 us-gaap Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
56300000 USD
CY2018 us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
-600000 USD
CY2020 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
50200000 USD
CY2019 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
50700000 USD
CY2018 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
13200000 USD
CY2018Q4 us-gaap Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
50000000.0 USD
CY2017Q4 us-gaap Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
0.0 USD
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
161000000.0 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
110300000 USD
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
97100000 USD
CY2020Q4 us-gaap Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
78400000 USD
CY2019Q4 us-gaap Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
56300000 USD
CY2018Q4 us-gaap Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
50000000.0 USD
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
211200000 USD
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
161000000.0 USD
CY2018Q1 us-gaap Equity Method Investment Aggregate Cost
EquityMethodInvestmentAggregateCost
125000000.0 USD
CY2019Q2 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
81400000 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
110300000 USD
CY2020 us-gaap Use Of Estimates
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<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><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 preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</span></div>
CY2020Q4 wtm Percentage Of Par Value Of Policy Reinsured
PercentageOfParValueOfPolicyReinsured
0.15
CY2019Q2 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
81400000 USD
CY2020 wtm Percentage Of Investments Recorded At Fair Value
PercentageOfInvestmentsRecordedAtFairValue
0.73
CY2020 wtm Fair Value Measurements Variance Thresholdfor Outliers
FairValueMeasurementsVarianceThresholdforOutliers
500000 USD
CY2020 wtm Fair Value Measurements Variance Thresholdfor Outliers Percent
FairValueMeasurementsVarianceThresholdforOutliersPercent
0.05
CY2020Q4 us-gaap Other Long Term Investments
OtherLongTermInvestments
786800000 USD
CY2020 us-gaap Derivatives Reporting Of Derivative Activity
DerivativesReportingOfDerivativeActivity
<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Derivatives </span></div><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%">From time to time, White Mountains holds derivative financial instruments for risk management purposes. White Mountains recognizes all derivatives as either assets or liabilities, measured at fair value, on its consolidated balance sheet. Changes in the fair value of derivative instruments that meet the criteria for hedge accounting are recognized in other comprehensive income and reclassified into current period pre-tax income when the hedged items are recognized therein. Changes in the fair value of derivative instruments that do not meet the criteria for hedge accounting are recognized in current period pre-tax income.</span></div><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%">As of December 31, 2020, White Mountains holds interest rate cap derivative instruments that do not meet the criteria for hedge accounting. As of December 31, 2020 and 2019, White Mountains holds an interest rate swap derivative instrument that meets the criteria for hedge accounting. See </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 7 — “Derivatives”</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span></div>
CY2020Q4 us-gaap Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
5600000 USD
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
-2400000 USD
CY2020 wtm Business Combination Earnout Period Payments
BusinessCombinationEarnoutPeriodPayments
6400000 USD
CY2019 us-gaap Gain Loss On Investments
GainLossOnInvestments
433200000 USD
CY2020 us-gaap Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
132200000 USD
CY2019 us-gaap Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
81000000.0 USD
CY2018 us-gaap Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
62000000.0 USD
CY2020 us-gaap Investment Income Investment Expense
InvestmentIncomeInvestmentExpense
1200000 USD
CY2019 us-gaap Investment Income Investment Expense
InvestmentIncomeInvestmentExpense
1300000 USD
CY2018 us-gaap Investment Income Investment Expense
InvestmentIncomeInvestmentExpense
3000000.0 USD
CY2020 us-gaap Net Investment Income
NetInvestmentIncome
131000000.0 USD
CY2019 us-gaap Net Investment Income
NetInvestmentIncome
79700000 USD
CY2018 us-gaap Net Investment Income
NetInvestmentIncome
59000000.0 USD
CY2020 us-gaap Gain Loss On Investments
GainLossOnInvestments
716800000 USD
CY2018 us-gaap Gain Loss On Investments
GainLossOnInvestments
-108300000 USD
CY2020 us-gaap Gain Loss On Sale Of Investments
GainLossOnSaleOfInvestments
-20200000 USD
CY2019 us-gaap Gain Loss On Sale Of Investments
GainLossOnSaleOfInvestments
-24600000 USD
CY2018 us-gaap Gain Loss On Sale Of Investments
GainLossOnSaleOfInvestments
33000000.0 USD
CY2020 us-gaap Trading Securities Realized Gain
TradingSecuritiesRealizedGain
214400000 USD
CY2019 us-gaap Trading Securities Realized Gain
TradingSecuritiesRealizedGain
104000000.0 USD
CY2018 us-gaap Trading Securities Realized Gain
TradingSecuritiesRealizedGain
49400000 USD
CY2020 us-gaap Trading Securities Realized Loss
TradingSecuritiesRealizedLoss
27300000 USD
CY2019 us-gaap Trading Securities Realized Loss
TradingSecuritiesRealizedLoss
7400000 USD
CY2018 us-gaap Trading Securities Realized Loss
TradingSecuritiesRealizedLoss
62300000 USD
CY2020 us-gaap Proceeds From Sale Maturity And Collection Of Longterm Investments
ProceedsFromSaleMaturityAndCollectionOfLongtermInvestments
1400000000 USD
CY2019 us-gaap Proceeds From Sale Maturity And Collection Of Longterm Investments
ProceedsFromSaleMaturityAndCollectionOfLongtermInvestments
1000000000.0 USD
CY2018 us-gaap Proceeds From Sale Maturity And Collection Of Longterm Investments
ProceedsFromSaleMaturityAndCollectionOfLongtermInvestments
2200000000 USD
CY2020Q4 us-gaap Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis
HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
1151700000 USD
CY2020Q4 us-gaap Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value
HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue
1207200000 USD
CY2020 wtm Percentage Of Investments Recorded At Fair Value
PercentageOfInvestmentsRecordedAtFairValue
0.73
CY2019 wtm Percentage Of Investments Recorded At Fair Value
PercentageOfInvestmentsRecordedAtFairValue
0.71
CY2020Q4 wtm Investments Held In Trusts
InvestmentsHeldInTrusts
432400000 USD
CY2019Q4 wtm Investments Held In Trusts
InvestmentsHeldInTrusts
319900000 USD
CY2020Q4 us-gaap Assets Held By Insurance Regulators
AssetsHeldByInsuranceRegulators
11900000 USD
CY2019Q4 us-gaap Assets Held By Insurance Regulators
AssetsHeldByInsuranceRegulators
9900000 USD
CY2020Q4 us-gaap Other Investments
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786800000 USD
CY2019Q4 us-gaap Other Investments
OtherInvestments
676300000 USD
CY2020Q4 wtm Number Of Investments
NumberOfInvestments
14 fund
CY2019Q4 us-gaap Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
2746000000.0 USD
CY2020 wtm Fair Value Assets Measured On Recurring Basis Gain Loss Included In Earnings
FairValueAssetsMeasuredOnRecurringBasisGainLossIncludedInEarnings
716400000 USD
CY2020 us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
4500000 USD
CY2020 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases
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766600000 USD
CY2020 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales
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1428300000 USD
CY2020 wtm Fair Value Assets Measured On Recurring Basis Transfers In
FairValueAssetsMeasuredOnRecurringBasisTransfersIn
0 USD
CY2020 wtm Fair Value Assets Measured On Recurring Basis Transfers Out
FairValueAssetsMeasuredOnRecurringBasisTransfersOut
0 USD
CY2020Q4 us-gaap Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
2796200000 USD
CY2018Q4 us-gaap Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
2328700000 USD
CY2019 wtm Fair Value Assets Measured On Recurring Basis Gain Loss Included In Earnings
FairValueAssetsMeasuredOnRecurringBasisGainLossIncludedInEarnings
433000000.0 USD
CY2019 us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
1600000 USD
CY2019 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases
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866100000 USD
CY2019 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales
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950300000 USD
CY2019 wtm Net Change In Investments Related To Purchases And Sales Of Consolidatedunconsolidated Affiliates
NetChangeInInvestmentsRelatedToPurchasesAndSalesOfConsolidatedunconsolidatedAffiliates
-70100000 USD
CY2019 wtm Fair Value Assets Measured On Recurring Basis Transfers In
FairValueAssetsMeasuredOnRecurringBasisTransfersIn
14900000 USD
CY2019 wtm Fair Value Assets Measured On Recurring Basis Transfers Out
FairValueAssetsMeasuredOnRecurringBasisTransfersOut
14900000 USD
CY2019Q4 us-gaap Investments Fair Value Disclosure
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2746000000.0 USD
CY2020Q4 us-gaap Goodwill Fair Value Disclosure
GoodwillFairValueDisclosure
525500000 USD
CY2020 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
CY2020Q4 us-gaap Goodwill
Goodwill
525500000 USD
CY2019Q4 us-gaap Goodwill Fair Value Disclosure
GoodwillFairValueDisclosure
402300000 USD
CY2019 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
7600000 USD
CY2019Q4 us-gaap Goodwill
Goodwill
394700000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Fair Value Disclosure
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843300000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
54700000 USD
CY2020 us-gaap Goodwill And Intangible Asset Impairment
GoodwillAndIntangibleAssetImpairment
6200000 USD
CY2020Q4 us-gaap Intangible Assets Net Including Goodwill
IntangibleAssetsNetIncludingGoodwill
782400000 USD
CY2020Q4 us-gaap Indefinite Lived Intangible Assets Excluding Goodwill
IndefiniteLivedIntangibleAssetsExcludingGoodwill
8600000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Fair Value Disclosure
FiniteLivedIntangibleAssetsFairValueDisclosure
694400000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
29300000 USD
CY2019 us-gaap Goodwill And Intangible Asset Impairment
GoodwillAndIntangibleAssetImpairment
10400000 USD
CY2019Q4 us-gaap Intangible Assets Net Including Goodwill
IntangibleAssetsNetIncludingGoodwill
656700000 USD
CY2020 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
28300000 USD
CY2019 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
21800000 USD
CY2018 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
18800000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
36300000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
35200000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
34100000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
28600000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
114100000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
248300000 USD
CY2020Q4 us-gaap Long Term Debt
LongTermDebt
376400000 USD
CY2019Q4 us-gaap Long Term Debt
LongTermDebt
283500000 USD
CY2020 wtm Debt Weighted Average Interest Rate Excluding Amortization Of Debt Issuance Costs
DebtWeightedAverageInterestRateExcludingAmortizationOfDebtIssuanceCosts
0.070
CY2019 wtm Debt Weighted Average Interest Rate Excluding Amortization Of Debt Issuance Costs
DebtWeightedAverageInterestRateExcludingAmortizationOfDebtIssuanceCosts
0.070
CY2020Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
4500000 USD
CY2020Q4 us-gaap Long Term Debt Maturing In Years Two And Three
LongTermDebtMaturingInYearsTwoAndThree
12200000 USD
CY2020Q4 us-gaap Long Term Debt Maturing In Years Four And Five
LongTermDebtMaturingInYearsFourAndFive
106000000.0 USD
CY2020Q4 us-gaap Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
263300000 USD
CY2020Q4 wtm Long Term Debt Maturities Repayments Of Principal Total
LongTermDebtMaturitiesRepaymentsOfPrincipalTotal
386000000.0 USD
CY2020Q2 us-gaap Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
291400000 USD
CY2020Q4 wtm Numberof Secured Credit Facilities
NumberofSecuredCreditFacilities
2 credit_facility
CY2020 us-gaap Interest Expense Debt
InterestExpenseDebt
29500000 USD
CY2019 us-gaap Interest Expense Debt
InterestExpenseDebt
17600000 USD
CY2018 us-gaap Interest Expense Debt
InterestExpenseDebt
9500000 USD
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-4000000.0 USD
CY2020 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
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3700000 USD
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1700000 USD
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CY2020 us-gaap Current Income Tax Expense Benefit
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4500000 USD
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CY2019 us-gaap Deferred State And Local Income Tax Expense Benefit
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CY2018 us-gaap Deferred State And Local Income Tax Expense Benefit
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CY2019 us-gaap Deferred Foreign Income Tax Expense Benefit
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CY2020 us-gaap Deferred Income Tax Expense Benefit
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CY2020 us-gaap Income Tax Expense Benefit
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CY2019 us-gaap Income Tax Expense Benefit
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CY2020 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
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CY2019 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
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85100000 USD
CY2018 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
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0 USD
CY2018 us-gaap Income Tax Reconciliation Disposition Of Business
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CY2019 us-gaap Income Tax Reconciliation Foreign Income Tax Rate Differential
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CY2018 us-gaap Income Tax Reconciliation Foreign Income Tax Rate Differential
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2900000 USD
CY2020 us-gaap Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
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29200000 USD
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31000000.0 USD
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8500000 USD
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17500000 USD
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5000000.0 USD
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1600000 USD
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2700000 USD
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4800000 USD
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3600000 USD
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2600000 USD
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5700000 USD
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-1900000 USD
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700000 USD
CY2018 us-gaap Income Tax Reconciliation Tax Contingencies
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800000 USD
CY2020 us-gaap Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
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1100000 USD
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0 USD
CY2018 us-gaap Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
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CY2020 us-gaap Income Tax Reconciliation Tax Exempt Income
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800000 USD
CY2019 us-gaap Income Tax Reconciliation Tax Exempt Income
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1100000 USD
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600000 USD
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9700000 USD
CY2019 us-gaap Income Tax Reconciliation Other Adjustments
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6900000 USD
CY2018 us-gaap Income Tax Reconciliation Other Adjustments
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-300000 USD
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CY2019 us-gaap Income Tax Expense Benefit
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29300000 USD
CY2018 us-gaap Income Tax Expense Benefit
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3700000 USD
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3500000 USD
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41700000 USD
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17500000 USD
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15000000.0 USD
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7900000 USD
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5100000 USD
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5500000 USD
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4300000 USD
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5500000 USD
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1300000 USD
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3400000 USD
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166000000.0 USD
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6600000 USD
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72900000 USD
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5100000 USD
CY2019Q4 wtm Deferred Tax Liability Purchase Accounting
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3100000 USD
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300000 USD
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66300000 USD
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2800000 USD
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120700000 USD
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2500000 USD
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32600000 USD
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77900000 USD
CY2020Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards Foreign
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5500000 USD
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0.50
CY2017Q4 us-gaap Unrecognized Tax Benefits
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300000 USD
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800000 USD
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1100000 USD
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CY2019Q4 us-gaap Unrecognized Tax Benefits
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100000 USD
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100000 USD
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2600000 USD
CY2020Q4 us-gaap Unrecognized Tax Benefits
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0 USD
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0.60
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0.10
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414500000 USD
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2300000 USD
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9300000 USD
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5300000 USD
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-1400000 USD
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701700000 USD
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408400000 USD
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-122600000 USD
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3181600 shares
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3382500 shares
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40500 shares
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40100 shares
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3081400 shares
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3141100 shares
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3342400 shares
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3122200 shares
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3181600 shares
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3382500 shares
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40800 shares
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40500 shares
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40100 shares
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3081400 shares
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3141100 shares
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3342400 shares
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1.00
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1.00
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1.00
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226.72
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129.02
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227.72
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130.02
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701700000 USD
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408400000 USD
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3100000 USD
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3200000 USD
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3700000 USD
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698600000 USD
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405200000 USD
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38300000 USD
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7700000 USD
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7200000 USD
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400000 USD
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400000 USD
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7300000 USD
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6800000 USD
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7700000 USD
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7300000 USD
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7100000 USD
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5800000 USD
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5100000 USD
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12200000 USD
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due
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45200000 USD
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6900000 USD
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38300000 USD
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37600000 USD
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0.046
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38300000 USD
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22600000 USD
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0.046
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22800000 USD
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85100000 USD
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859
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4900000 USD
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858
CY2018 us-gaap Stock Repurchased And Retired During Period Value
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519100000 USD
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877
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15745 shares
CY2019 us-gaap Stock Issued During Period Shares New Issues
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17917 shares
CY2018 us-gaap Stock Issued During Period Shares New Issues
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16377 shares
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3200000 USD
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3200000 USD
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3800000 USD
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1.00
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7000000.0 USD
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434500000 USD
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4 numberOfSegments
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22800000 USD
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131000000.0 USD
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30800000 USD
CY2020 wtm Commission Revenue
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240800000 USD
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69300000 USD
CY2020 us-gaap Revenues
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1180700000 USD
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400000 USD
CY2020 us-gaap Cost Of Goods And Services Sold
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11300000 USD
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387000000.0 USD
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75300000 USD
CY2020 us-gaap Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1
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28300000 USD
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29500000 USD
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535500000 USD
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