CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Net income (loss)	$ 25,597		$ 69,578		$ 63,158
Other comprehensive income (loss):
Change in net unrealized gains (losses) on investments, net of deferred tax of $15,143, $1,324 and $25,602 in 2011, 2010 and 2009, respectively (1)	29,386	[1]	(3,484)	[1]	50,020	[1]
Change in foreign currency translation gains (losses), net of deferred tax of $192, $157 and $72 in 2011, 2010 and 2009, respectively	401		290		134
Other comprehensive income (loss)	29,787		(3,194)		50,154
Comprehensive income (loss)	$ 55,384		$ 66,384		$ 113,312

[1] Disclosure of reclassification amount, net of tax: Unrealized gains (losses) on investments arising during period $ 34,348 $ 12,339 $ 33,910 Reclassification adjustment for net realized gains (losses) included in net income (4,807 ) (16,797 ) 1,624 Reclassification adjustment for other-than-temporary impairment losses recognized in net income (155 ) 974 14,486 Change in net unrealized gains (losses) on investments, net of tax $ 29,386 $ (3,484 ) $ 50,020