Other Real Estate Owned (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
OREO activity
Balance, beginning of period	$ 34,267,000	$ 63,537,000	$ 38,092,000	$ 79,303,000
Additions	2,097,000	4,953,000	4,131,000	14,629,000
Sales	(13,217,000)	(4,768,000)	(18,907,000)	(26,943,000)
Valuation adjustments	(934,000)	(2,245,000)	(1,103,000)	(5,512,000)
Balance, end of period	22,213,000	61,477,000	22,213,000	61,477,000
OREO Valuation Allowances	11,100,000		11,100,000		17,400,000
Non-Covered OREO
OREO activity
Balance, beginning of period	9,412,000	19,786,000	12,611,000	21,027,000
Additions	110,000	341,000	111,000	723,000
Sales	(5,253,000)	(390,000)	(8,439,000)	(1,781,000)
Valuation adjustments		(61,000)	(14,000)	(293,000)
Balance, end of period	4,269,000	19,676,000	4,269,000	19,676,000
Covered OREO
OREO activity
Balance, beginning of period	24,855,000	43,751,000	25,481,000	58,276,000
Additions	1,987,000	4,612,000	4,020,000	13,906,000
Sales	(7,964,000)	(4,378,000)	(10,468,000)	(25,162,000)
Valuation adjustments	(934,000)	(2,184,000)	(1,089,000)	(5,219,000)
Balance, end of period	$ 17,944,000	$ 41,801,000	$ 17,944,000	$ 41,801,000
FDIC reimbursement (as a percent)			80.00%
Payable to FDIC (as a percent)			80.00%