CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Investment Securities:
Fixed maturity investments, at fair value	$ 1,743.6		$ 1,700.9
Short-term investments, at amortized cost (which approximates fair value)	152.7		157.0
Common equity securities, at fair value	347.1		336.9
Convertible fixed maturity investments, at fair value	29.3		30.5
Other investments	143.0		139.6
Total investments	2,415.7		2,364.9
Cash	138.6		168.1
Reinsurance recoverables	83.1	[1]	89.9
Premiums receivable	249.2		228.2
Deferred acquisition costs	105.9		103.7
Net deferred tax asset	79.8		90.6
Investment income accrued	9.1		10.1
Accounts receivable on unsettled investment sales	6.7		3.3
Other assets	289.9		272.7
Assets held for sale	1,803.1		1,880.1
Total assets	5,181.1		5,211.6
Liabilities
Unpaid loss and loss adjustment expense reserves	1,069.8		1,054.3
Unearned premiums	582.2		544.9
Debt	274.7		274.7
Accounts payable on unsettled investment purchases	25.6		11.6
Other liabilities	292.6		338.6
Liabilities held for sale	1,803.1		1,880.1
Total liabilities	4,048.0		4,104.2
OneBeacon's common shareholders' equity
Common shares and paid-in surplus (par value $0.01; authorized, 200,000,000 shares; issued and outstanding, 95,296,387 and 95,404,138 shares)	1,021.5		1,022.5
Retained earnings	102.0		75.0
Accumulated other comprehensive loss, after tax	6.8		6.8
Total OneBeacon's common shareholders' equity	1,130.3		1,104.3
Total noncontrolling interests, after tax	2.8		3.1
Total OneBeacon's common shareholders' equity and noncontrolling interests	1,133.1		1,107.4
Total liabilities, OneBeacon's common shareholders' equity and noncontrolling interests	$ 5,181.1		$ 5,211.6

[1] Standard & Poor's ratings as detailed above are "AA" (Very strong), "A" (Strong) and "BBB+" (Adequate).