CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED BALANCE SHEETS
Securities available-for-sale, covered by FDIC loss sharing (in dollars)	$ 44,684	$ 45,149
Other real estate owned, covered by FDIC loss sharing (in dollars)	$ 22,842	$ 33,506
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	37,772,559	37,542,287
Common stock, unvested restricted stock	1,698,281	1,675,730
Treasury stock, at cost, shares	351,650	287,969