CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
CONDENSED CONSOLIDATED BALANCE SHEETS
Securities available-for-sale, covered by FDIC loss sharing (in dollars)	$ 43,785	$ 44,684
Other real estate owned, covered by FDIC loss sharing (in dollars)	$ 17,311	$ 22,842
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	37,501,627	37,772,559
Common stock, unvested restricted stock	1,203,495	1,698,281
Treasury stock, shares	430,270	351,650