CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Assets
Total investments	$ 2,542.9	$ 3,380.7
Goodwill and other intangible assets	537.5	62.1
Total assets	3,362.6	3,659.2
Liabilities
Debt	192.7	23.8
Total liabilities	644.4	298.4
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 3,173,115 and 3,750,171 shares	3.2	3.8
Paid-in surplus	580.8	666.8
Retained earnings	2,264.9	2,823.2
Accumulated other comprehensive income (loss), after-tax:
Net unrealized foreign currency translation losses and interest rate swap	(5.8)	(1.3)
Total White Mountains’s common shareholders’ equity	2,843.1	3,492.5
Non-controlling interests
Non-controlling interests	(124.9)	(131.7)
Total equity	2,718.2	3,360.8
Total liabilities and equity	3,362.6	3,659.2
HG Global-BAM
Assets
Fixed maturity investments, at fair value	701.4	623.6
Short-term investments, at fair value	66.9	69.8
Total investments	768.3	693.4
Cash	12.5	25.6
Premium receivable	6.4	4.5
Deferred acquisition costs	19.0	14.8
Accrued investment income	4.9	3.4
Accounts receivable on unsettled investment sales	0.0	0.0
Other assets	5.1	5.7
Total assets	816.2	747.4
Liabilities
Unearned insurance premiums	176.0	136.8
Accounts payable on unsettled investment purchases	2.2	0.6
Other liabilities	34.3	29.6
Total liabilities	212.5	167.0
NSM Holding Co LLC
Assets
Short-term investments, at fair value	1.7	0.0
Cash	66.2	0.0
Commission Receivable	44.0	0.0
Goodwill and other intangible assets	486.2	0.0
Other assets	28.9	0.0
Total assets	627.0	0.0
Liabilities
Debt	178.5	0.0
Premiums payable	77.2	0.0
Contingent consideration earnout liabilities	20.2	0.0
Other liabilities	38.9	0.0
Total liabilities	314.8	0.0
MediaAlpha
Assets
Cash	5.7	9.1
Goodwill and other intangible assets	43.4	53.7
Accounts receivable from publishers and advertisers	37.0	32.4
Other assets	2.3	1.3
Total assets	88.4	96.5
Liabilities
Debt	14.2	23.8
Amounts due to publishers and advertisers	27.0	31.6
Other liabilities	5.7	4.4
Total liabilities	46.9	59.8
Other
Assets
Fixed maturity investments, at fair value	376.1	1,506.1
Short-term investments, at fair value	145.6	106.3
Common equity securities, at fair value	925.6	866.1
Other long-term investments	325.6	208.8
Total investments	1,772.9	2,687.3
Cash	25.9	62.4
Accrued investment income	5.5	13.9
Accounts receivable on unsettled investment sales	0.0	20.9
Goodwill and other intangible assets	7.9	8.4
Other assets	15.5	19.1
Assets held for sale	3.3	3.3
Total assets	1,831.0	2,815.3
Liabilities
Accrued incentive compensation	38.9	60.6
Accounts payable on unsettled investment purchases	5.0	0.0
Other liabilities	26.3	11.0
Total liabilities	$ 70.2	$ 71.6