CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Assets
Fixed maturity investments, at fair value (amortized cost: $2,519.4 and $2,662.2)	$ 2,506.2	$ 2,738.6
Equity securities, at fair value (cost: $114.7 and $38.1)	116.1	40.9
Other investments (cost: $72.5 and $143.1)	80.1	138.5
Total investments	2,702.4	2,918.0
Cash and cash equivalents	438.7	330.8
Restricted cash	115.6	70.6
Reinsurance recoverable on unpaid losses	80.3	102.7
Reinsurance recoverable on paid losses	26.8	6.7
Insurance and reinsurance premiums receivable	341.3	222.9
Unearned reinsurance premiums ceded	48.9	22.2
Deferred insurance and reinsurance acquisition costs	60.2	48.4
Accrued investment income	14.7	15.2
Unsettled sales of investments	79.9	48.9
Other assets	26.9	23.7
Total Assets	3,935.7	3,810.1
Liabilities
Loss and loss adjustment expense reserves	1,003.7	1,112.4
Debt	399.1	399.1
Unearned insurance and reinsurance premiums	413.9	270.1
Insurance and reinsurance balances payable	89.9	54.0
Liability for investment securities sold short	110.9	138.8
Unsettled purchases of investments	206.9	148.7
Accounts payable, accrued expenses and other liabilities	42.0	57.6
Total Liabilities	2,266.4	2,180.7
Commitments and Contingent Liabilities (See Note 10)
Shareholders' Equity
Non-cumulative preferred shares ("Preferred Shares") - issued 6,000,000 shares	150.0	150.0
Common Shares, at par value - issued 52,183,346 and 56,711,141 shares	0.1	0.1
Additional paid-in capital	942.2	1,056.0
Common Shares held in treasury, at cost: 1,163,239 and 1,441,451 shares	(18.2)	(23.1)
Retained earnings	502.4	449.7
Accumulated other comprehensive loss	(6.5)	(3.3)
Total Shareholders' Equity available to the Company	1,570.0	1,629.4
Non-controlling interest	99.3
Total Shareholders' Equity	1,669.3	1,629.4
Total Liabilities and Shareholders' Equity	$ 3,935.7	$ 3,810.1