CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Unallocated Common Stock Held by ESOP
Balance at Dec. 31, 2010	$ 1,241,780		$ 1,665	$ 864,744	$ 1,848,095	$ (1,417,956)	$ (42,161)	$ (12,607)
Increase (Decrease) in Stockholders' Equity
Net income	67,209				67,209
Other comprehensive income (loss), net of tax	(33,500)						(33,500)
Dividends on common stock ($0.16 per share in 2013, $0.25 per share in 2012 and $0.52 per share in 2011)	(49,435)				(49,435)
Restricted stock grants (536,110 shares in 2013, 157,000 shares in 2012 and 685,650 shares in 2011)				(9,698)	(4,471)	14,169
Forfeitures of restricted stock (113,468 shares in 2013, 275,397 shares in 2012 and 25,404 shares in 2011)				357	167	(524)
Stock-based compensation	9,035			9,008	27
Net tax benefit shortfall from stock-based compensation	(263)			(263)
Allocation of ESOP stock	16,372			11,247				5,125
Balance at Dec. 31, 2011	1,251,198		1,665	875,395	1,861,592	(1,404,311)	(75,661)	(7,482)
Increase (Decrease) in Stockholders' Equity
Net income	53,091				53,091
Other comprehensive income (loss), net of tax	2,571						2,571
Dividends on common stock ($0.16 per share in 2013, $0.25 per share in 2012 and $0.52 per share in 2011)	(24,104)				(24,104)
Restricted stock grants (536,110 shares in 2013, 157,000 shares in 2012 and 685,650 shares in 2011)				(1,541)	(1,703)	3,244
Forfeitures of restricted stock (113,468 shares in 2013, 275,397 shares in 2012 and 25,404 shares in 2011)				3,918	1,770	(5,688)
Stock-based compensation	5,166			4,790	376
Net tax benefit shortfall from stock-based compensation	(4,123)			(4,123)
Allocation of ESOP stock	10,190			6,250				3,940
Balance at Dec. 31, 2012	1,293,989		1,665	884,689	1,891,022	(1,406,755)	(73,090)	(3,542)
Increase (Decrease) in Stockholders' Equity
Net income	66,593				66,593
Other comprehensive income (loss), net of tax	34,840						34,840
Issuance of Preferred Stock, Series C (135,000 shares)	129,796	129,796
Dividends on common stock ($0.16 per share in 2013, $0.25 per share in 2012 and $0.52 per share in 2011)	(15,667)				(15,667)
Dividends on preferred stock ($53.44 per share)	(7,214)				(7,214)
Restricted stock grants (536,110 shares in 2013, 157,000 shares in 2012 and 685,650 shares in 2011)				(5,200)	(5,878)	11,078
Forfeitures of restricted stock (113,468 shares in 2013, 275,397 shares in 2012 and 25,404 shares in 2011)				1,234	1,110	(2,344)
Stock-based compensation	6,969			6,909	60
Net tax benefit shortfall from stock-based compensation	(800)			(800)
Allocation of ESOP stock	11,007			7,465				3,542
Balance at Dec. 31, 2013	$ 1,519,513	$ 129,796	$ 1,665	$ 894,297	$ 1,930,026	$ (1,398,021)	$ (38,250)