CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Investment portfolio (notes 7 and 8)
Fixed maturities (amortized cost, 2011 - $6,618,208; 2010 - $7,366,808)	$ 6,743,812	$ 7,455,238
Equity securities	2,637	3,044
Total investment portfolio	6,746,449	7,458,282
Cash and cash equivalents	1,038,568	1,304,154
Accrued investment income	67,555	70,305
Reinsurance recoverable on loss reserves (note 4)	206,170	275,290
Reinsurance recoverable on paid losses	32,259	34,160
Prepaid reinsurance premiums	1,962	2,637
Premium receivable	74,717	79,567
Home office and equipment, net	28,962	28,638
Deferred insurance policy acquisition costs	7,970	8,282
Other assets	65,124	72,327
Total assets	8,269,736	9,333,642
Liabilities:
Loss reserves (note 12)	5,082,902	5,884,171
Premium deficiency reserve (note 13)	158,913	178,967
Unearned premiums	186,985	215,157
Senior notes (note 3)	321,621	376,329
Convertible senior notes (note 3)	345,000	345,000
Convertible junior debentures (note 3)	329,330	315,626
Other liabilities	332,125	349,337
Total liabilities	6,756,876	7,664,587
Contingencies (note 5)
Shareholders' equity:
Common stock ($1 par value, shares authorized 460,000,000; shares issued, 2011 - 205,046,780; 2010 - 205,046,780; shares outstanding, 2011 - 201,146,648; 2010 - 200,449,588)	205,047	205,047
Paid-in capital	1,131,557	1,138,942
Treasury stock (shares at cost, 2011 - 3,900,132; 2010 - 4,597,192)	(163,586)	(222,632)
Accumulated other comprehensive income, net of tax (note 9)	50,977	22,136
Retained earnings	288,865	525,562
Total shareholders' equity	1,512,860	1,669,055
Total liabilities and shareholders' equity	$ 8,269,736	$ 9,333,642