CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
CONSOLIDATED BALANCE SHEETS
Securities available-for-sale, covered by FDIC loss share (in dollars)	$ 45,149	$ 50,437
Other real estate owned, covered by FDIC loss share (in dollars)	$ 33,506	$ 55,816
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares	5,000,000	5,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares	75,000,000	75,000,000
Common stock, issued shares	37,542,287	36,880,225
Common stock, unvested restricted stock	1,675,730	1,230,582
Treasury stock, shares	287,969	207,796