CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues
Gross insurance and reinsurance premiums written	$ 273.5	$ 261.2
Ceded reinsurance premiums	(36.4)	(35.2)
Net insurance and reinsurance premiums written	237.1	226.0
Change in net unearned insurance and reinsurance premiums	(80.3)	(66.3)
Net insurance and reinsurance premiums earned	156.8	159.7
Net investment income	12.9	16.4
Net realized and unrealized investment gains (losses)	22.7	(0.7)
Net foreign currency gains (losses)	(1.8)	21.1
Net income (loss) from derivative instruments	(5.1)	4.6
Other revenue	0.3
Total revenues	185.8	201.1
Underwriting expenses:
Loss and loss adjustment expenses	27.4	50.6
Insurance and reinsurance acquisition costs	24.8	22.1
General and administrative expenses	26.8	26.9
Non-underwriting expenses:
Interest and other financing expenses	4.7	4.7
Total expenses	83.7	104.3
Income before income taxes	102.1	96.8
Income tax benefit (provision)	0.1	(0.2)
Net income	102.2	96.6
Net income attributable to non-controlling interests	(9.0)	(1.2)
Net income available to the Company	93.2	95.4
Dividends declared on Preferred Shares	(3.3)	(3.3)
Net income available to the Company's common shareholders	89.9	92.1
Net income	102.2	96.6
Net change in foreign currency translation	0.2	(3.5)
Comprehensive income	102.4	93.1
Net income attributable to non-controlling interest	(9.0)	(1.2)
Comprehensive income available to the Company	$ 93.4	$ 91.9
Per share data:
Basic and diluted earnings per Common Share (in dollars per share)	$ 1.84	$ 1.65
Dividends declared per Common Share (in dollars per share)	$ 0.125	$ 0.115