Consolidated Statement 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, 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	29,517				29,517
Other comprehensive loss, net of tax	(6,697)						(6,697)
Issuance of Preferred Stock, Series C (135,000 shares)	129,796	129,796
Dividends on common stock ($0.08 per share)	(7,835)				(7,835)
Dividends on preferred stock ($20.94 per share)	(2,827)				(2,827)
Restricted stock grants (536,110 shares)				(5,200)	(5,878)	11,078
Forfeitures of restricted stock (90,306 shares)				994	872	(1,866)
Stock-based compensation	3,467			3,417	50
Net tax benefit shortfall from stock-based compensation	(1,326)			(1,326)
Allocation of ESOP stock	5,061			3,179				1,882
Balance at Jun. 30, 2013	$ 1,443,145	$ 129,796	$ 1,665	$ 885,753	$ 1,904,921	$ (1,397,543)	$ (79,787)	$ (1,660)