CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2009	$ 506,773	$ 351	$ 1,053,584	$ (545,026)	$ (2,032)	$ (104)
Balance (in shares) at Dec. 31, 2009		35,015,322
Increase (Decrease) in Stockholders' Equity
Net earnings (loss)	(62,016)			(62,016)
Other comprehensive income- net unrealized gain on securities available-for-sale, net of tax	4,073					4,073
Issuance of common stock	26,587	14	26,573
Issuance of common stock (in shares)		1,348,040
Tax effect from vesting of restricted stock	(1,840)		(1,840)
Restricted stock awarded and earned stock compensation, net of shares forefeited	8,496	4	8,492
Restricted stock awarded and earned stock compensation, net of shares forefeited (in shares)		403,733
Restricted stock surrendered	(1,831)				(1,831)
Restricted stock surrendered (in shares)		(94,666)
Cash dividends paid ($0.79, $0.21 and $0.04 per share for the years ended 2012, 2011 and 2010, respectively)	(1,445)		(1,445)
Balance at Dec. 31, 2010	478,797	369	1,085,364	(607,042)	(3,863)	3,969
Balance (in shares) at Dec. 31, 2010		36,672,429
Increase (Decrease) in Stockholders' Equity
Net earnings (loss)	50,704			50,704
Other comprehensive income- net unrealized gain on securities available-for-sale, net of tax	18,834					18,834
Tax effect from vesting of restricted stock	(937)		(937)
Restricted stock awarded and earned stock compensation, net of shares forefeited	7,896	6	7,890
Restricted stock awarded and earned stock compensation, net of shares forefeited (in shares)		662,062
Restricted stock surrendered	(1,465)				(1,465)
Restricted stock surrendered (in shares)		(80,173)
Cash dividends paid ($0.79, $0.21 and $0.04 per share for the years ended 2012, 2011 and 2010, respectively)	(7,626)		(7,626)
Balance at Dec. 31, 2011	546,203	375	1,084,691	(556,338)	(5,328)	22,803
Balance (in shares) at Dec. 31, 2011		37,254,318
Increase (Decrease) in Stockholders' Equity
Net earnings (loss)	56,801			56,801
Other comprehensive income- net unrealized gain on securities available-for-sale, net of tax	10,097					10,097
Tax effect from vesting of restricted stock	283		283
Restricted stock awarded and earned stock compensation, net of shares forefeited	5,999	2	5,997
Restricted stock awarded and earned stock compensation, net of shares forefeited (in shares)		230,272
Restricted stock surrendered	(1,475)				(1,475)
Restricted stock surrendered (in shares)		(63,681)
Cash dividends paid ($0.79, $0.21 and $0.04 per share for the years ended 2012, 2011 and 2010, respectively)	(28,787)		(28,787)
Balance at Dec. 31, 2012	$ 589,121	$ 377	$ 1,062,184	$ (499,537)	$ (6,803)	$ 32,900
Balance (in shares) at Dec. 31, 2012		37,420,909