CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash Flows From Operating Activities
Net income	$ 55.9	$ 36.7	$ 151.2
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on discontinued operations	(0.7)	(5.2)	(1.8)
Net loss from retirement of debt	5.1	2.3	2.0
Net realized investment gains	(22.8)	(16.2)	(29.3)
Net amortization and depreciation	35.6	26.7	16.7
Stock-based compensation expense	12.8	12.0	11.3
Amortization of defined benefit plan costs	9.3	10.2	9.8
Deferred income taxes	(35.5)	(9.2)	50.1
Change in deferred acquisition costs	(30.8)	18.3	(52.2)
Change in premiums receivable, net of reinsurance premiums payable	(53.3)	69.4	(204.9)
Change in accrued interest income	2.7	4.3	(1.1)
Change in loss, loss adjustment expense and unearned premium reserves	618.8	94.5	288.2
Change in reinsurance recoverable	(217.3)	(86.9)	(38.2)
Change in expenses and taxes payable	87.6	48.2	(85.0)
Other, net	(48.4)	16.6	(33.2)
Net cash provided by operating activities	408.2	221.7	83.6
Cash Flows From Investing Activities
Proceeds from disposals and maturities of fixed maturities	1,684.8	1,624.2	1,376.2
Proceeds from disposals of equity securities and other investments	218.2	101.2	132.6
Purchase of fixed maturities	(2,170.4)	(1,688.0)	(1,401.5)
Purchase of equity securities and other investments	(274.9)	(128.6)	(184.9)
Proceeds from disposal of Citizens Management, Inc., net of cash transferred	5.2
Cash provided by (used for) business acquisitions, net of cash acquired		287.7	(13.3)
Capital expenditures	(21.3)	(16.5)	(10.9)
Net proceeds (payments) related to derivative agreements	(4.4)	2.8	3.0
Net cash provided by (used in) investing activities	(562.8)	182.8	(98.8)
Cash Flows From Financing Activities
Proceeds from exercise of employee stock options	2.6	3.9	12.0
Proceeds from debt borrowings	7.4	325.4	207.5
Increase (decrease) in cash collateral related to securities lending program	5.2	(42.1)	(7.7)
Dividends paid to shareholders	(55.1)	(50.9)	(47.2)
Repurchases of debt	(73.1)	(86.8)	(38.5)
Repurchases of common stock	(20.0)	(21.7)	(134.7)
Other financing activities	(0.4)	(0.5)
Net cash provided by (used in) financing activities	(133.4)	127.3	(8.6)
Effect of exchange rate changes on cash	32.1	(3.9)
Net change in cash and cash equivalents	(255.9)	527.9	(23.8)
Net change in cash related to discontinued operations	0.3	2.1	(2.3)
Cash and cash equivalents, beginning of year	820.4	290.4	316.5
Cash and cash equivalents, end of year	564.8	820.4	290.4
Supplemental Cash Flow information
Interest payments	62.7	55.5	40.3
Income tax net payments (refunds)	(5.5)	3.0	11.3
Citizens Management, Inc.
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on discontinued operations	$ (10.8)