Covered Assets and FDIC Loss-sharing Asset (Covered OREO at Carrying Value) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance, beginning of period			$ 35,927
Proceeds from sale of OREO property			(10,298)	(6,076)
Gain on sale of OREO			2,972	6,291
Total OREO, end of period	28,254		28,254
Covered Loans [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance, beginning of period	14,712	13,811	12,093	16,311
Transfers in	0	3,125	5,507	4,530
Additional OREO write-down	(338)	(29)	(989)	(94)
Proceeds from sale of OREO property	(2,530)	(7,376)	(5,634)	(13,814)
Gain on sale of OREO	1,207	3,323	2,074	5,921
Total OREO, end of period	$ 13,051	$ 12,854	$ 13,051	$ 12,854