CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net income (loss)	$ 33,777	$ 3,225	$ (91,213)
Other comprehensive income, net of tax:
Unrealized holding gains arising during the year	11,920	4,766	4,082
Tax provision	(4,695)	(1,888)	(1,538)
Unrealized holding gains arising during the year, net of tax	7,225	2,878	2,544
Less: Reclassification adjustment for net other-than-temporary impairment losses on securities	179	0	192
Tax benefit	(70)	0	(74)
Net impairment losses on securities, net of tax	109	0	118
Less: Reclassification adjustment for net gains on sales of securities	(713)	(1,562)	(833)
Tax provision	277	609	320
Net realized gains, net of tax	(436)	(953)	(513)
Other comprehensive income, net of tax	6,898	1,925	2,149
Total net comprehensive income (loss)	$ 40,675	$ 5,150	$ (89,064)