CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Investments:
Fixed maturities, at fair value (amortized cost of $6,363.6 and $6,008.7)	$ 6,794.9	$ 6,284.7
Equity securities, at fair value (cost of $363.0 and $239.9)	392.8	246.4
Other investments	257.1	190.2
Total investments	7,444.8	6,721.3
Cash and cash equivalents	462.0	820.4
Accrued investment income	74.8	71.8
Premiums and accounts receivable, net	1,350.5	1,168.1
Reinsurance recoverable on paid and unpaid losses and unearned premiums	2,444.6	2,262.2
Deferred policy acquisition costs	501.3	458.6
Deferred income taxes	206.5	274.0
Goodwill	184.8	185.5
Other assets	531.0	515.5
Assets of discontinued operations	129.8	121.2
Total assets	13,330.1	12,598.6
LIABILITIES
Loss and loss adjustment expense reserves	5,938.9	5,760.3
Unearned premiums	2,555.7	2,292.1
Expenses and taxes payable	618.5	642.9
Reinsurance premiums payable	473.9	378.9
Debt	917.5	911.1
Liabilities of discontinued operations	126.2	129.3
Total liabilities	10,630.7	10,114.6
Commitments and contingencies
SHAREHOLDERS' EQUITY
Preferred stock, $0.01 par value, 20.0 million shares authorized, none issued
Common stock, $0.01 par value, 300.0 million shares authorized, $60.5 million shares issued	0.6	0.6
Additional paid-in capital	1,785.0	1,784.8
Accumulated other comprehensive income	364.0	210.4
Retained earnings	1,282.1	1,211.3
Treasury stock, at cost (16.2 and 15.9 million shares)	(732.3)	(723.1)
Total shareholders' equity	2,699.4	2,484.0
Total liabilities and shareholders' equity	$ 13,330.1	$ 12,598.6