Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ 51,989	$ (710)	$ 6,667
Other comprehensive income (loss):
Unrealized gains (losses) on securities available for sale	(22,532)	3,227	5,884
Unrealized gains on transfer of securities held for investment into securities available for sale	724	0	0
Reclassification adjustment for gains included in net income	(149)	(6,632)	(354)
Benefit (provision) for income taxes	8,475	1,315	(2,135)
Total other comprehensive income (loss)	(13,482)	(2,090)	3,395
COMPREHENSIVE INCOME (LOSS)	$ 38,507	$ (2,800)	$ 10,062