CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Securities, available-for-sale, at fair value:
Fixed maturities (amortized cost, 2014 - $4,611,685; 2013 - $4,948,543)	$ 4,611,468	$ 4,863,925
Equity securities	3,011	2,894
Total investment portfolio	4,614,479	4,866,819
Cash and cash equivalents	342,600	332,692
Restricted cash and cash equivalents (note 1)	17,203	17,440
Accrued investment income	29,030	31,660
Prepaid reinsurance premiums (note 4)	40,261	36,243
Reinsurance recoverable on loss reserves (note 4)	57,763	64,085
Reinsurance recoverable on paid losses (note 4)	7,517	10,425
Premium receivable	52,934	62,301
Home office and equipment, net	28,336	26,185
Deferred insurance policy acquisition costs	10,676	9,721
Other assets	178,345	143,819
Total assets	5,379,144	5,601,390
Liabilities:
Loss reserves (note 12)	2,675,594	3,061,401
Premium deficiency reserve (note 13)	35,455	48,461
Unearned premiums	168,200	154,479
Senior notes (note 3)	61,894	82,773
Convertible senior notes (note 3)	845,000	845,000
Convertible junior debentures (note 3)	389,522	389,522
Other liabilities	271,864	275,216
Total liabilities	4,447,529	4,856,852
Contingencies (note 5)
Shareholders' equity (note 14):
Common stock (one dollar par value, shares authorized 1,000,000; shares issued 2014 and 2013 - 340,047; shares outstanding 2014 - 338,560; 2013 - 337,758)	340,047	340,047
Paid-in capital	1,658,661	1,661,269
Treasury stock (shares at cost 2014 - 1,487; 2013 - 2,289)	(32,937)	(64,435)
Accumulated other comprehensive loss, net of tax (note 9)	(35,253)	(117,726)
Accumulated deficit	(998,903)	(1,074,617)
Total shareholders' equity	931,615	744,538
Total liabilities and shareholders' equity	$ 5,379,144	$ 5,601,390