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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Investments    
Other long-term investments $ 1,285.5 $ 786.8
Total assets 7,113.6 4,831.4
Liabilities    
Loss and loss adjustment expense reserves 890.9 696.0
Debt 710.4 376.4
Total liabilities 3,459.3 1,013.5
White Mountains’s common shareholders’ equity    
White Mountains’s common shares at $1 par value per share—authorized 50,000,000 shares; issued and outstanding 3,029,620 and 3,102,011 shares and paid-in surplus 3.0 3.1
Paid-in surplus 583.2 592.1
Retained earnings 2,935.3 3,311.2
Accumulated other comprehensive gain (loss), after-tax:    
Net unrealized foreign currency translation and interest rate swap gains (losses) 0.2 (0.4)
Total White Mountains’s common shareholders’ equity 3,521.7 3,906.0
Non-controlling interests 132.6 (88.1)
Total equity 3,654.3 3,817.9
Total liabilities and equity 7,113.6 4,831.4
Financial Guarantee (HG Global/BAM)    
Investments    
Fixed maturity investments, at fair value 898.4 859.5
Short-term investments, at fair value 50.3 60.4
Total investments 948.7 919.9
Cash 21.8 42.8
Insurance premiums receivable 6.9 6.9
Deferred acquisition costs 31.7 27.8
Other assets 18.7 20.4
Total assets 1,027.8 1,017.8
Liabilities    
Unearned insurance premiums 257.0 237.5
Accrued incentive compensation 21.0 25.7
Other liabilities 32.5 28.3
Total liabilities 310.5 291.5
P&C Insurance and Reinsurance (Ark)    
Investments    
Fixed maturity investments, at fair value 618.1 0.0
Common equity securities, at fair value 159.6 0.0
Short-term investments, at fair value 396.5 0.0
Other long-term investments 320.6 0.0
Total investments 1,494.8 0.0
Cash 116.5 0.0
Reinsurance recoverables 465.6 0.0
Insurance premiums receivable 482.3 0.0
Ceded unearned premiums 92.1 0.0
Deferred acquisition costs 127.8 0.0
Goodwill and other intangible assets 292.5 0.0
Other assets 61.3 0.0
Total assets 3,132.9 0.0
Liabilities    
Loss and loss adjustment expense reserves 890.9 0.0
Unearned insurance premiums 596.6 0.0
Debt 200.7 0.0
Reinsurance payable 481.4 0.0
Contingent consideration 24.0 0.0
Other liabilities 87.4 0.0
Total liabilities 2,281.0 0.0
Specialty Insurance Distribution (NSM)    
Investments    
Cash 126.5 126.5
Premiums and commissions receivable 78.8 76.7
Goodwill and other intangible assets 734.8 736.8
Other assets 56.4 59.6
Total assets 996.5 999.6
Liabilities    
Debt 295.0 272.6
Premiums Payable 132.5 113.4
Contingent consideration 6.7 14.6
Other liabilities 84.2 91.2
Total liabilities 518.4 491.8
Asset Management (Kudu)    
Investments    
Short-term investments, at fair value 0.1 0.1
Other long-term investments 604.7 400.6
Total investments 604.8 400.7
Cash 14.8 7.8
Accrued investment income 9.0 9.8
Goodwill and other intangible assets 9.0 9.2
Other assets 8.4 2.7
Total assets 646.0 430.2
Liabilities    
Debt 195.6 86.3
Other liabilities 40.2 10.0
Total liabilities 235.8 96.3
Other Operations    
Investments    
Fixed maturity investments, at fair value 316.4 347.7
Short-term investments, at fair value 162.6 82.4
Investment in MediaAlpha, at fair value 316.4 802.2
Other long-term investments 360.2 386.2
Total investments 1,155.6 1,618.5
Cash 31.1 34.1
Cash pre-funded/placed in escrow for Ark Transaction 0.0 646.3
Goodwill and other intangible assets 48.7 36.4
Other assets 75.0 48.5
Total assets 1,310.4 2,383.8
Liabilities    
Debt 19.1 17.5
Accrued incentive compensation 44.7 70.1
Other liabilities 49.8 46.3
Total liabilities $ 113.6 $ 133.9