Changes in Noncovered Other Real Estate Owned (Summary of Noncovered Other Real Estate Owned) (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
Other Real Estate Owned [Line Items]
Other Real Estate Owned, established through acquisition	$ 0	$ 14,708	$ 0	$ 14,708
Balance, beginning of period			35,927
Proceeds from sale of OREO property			(10,298)	(6,076)
Gain (loss) on sale of OREO			2,972	6,291
Total OREO, end of period	28,254		28,254
Noncovered Loans [Member]
Other Real Estate Owned [Line Items]
Balance, beginning of period	15,841	11,916	23,834	10,676
Transfers in, net of write-downs ($0, $11, $0 and $43, respectively)	2,090	2,067	2,334	4,777
Transfers in, write-downs	0	11	0	43
Additional OREO write-down	(636)	(477)	(1,565)	(570)
Proceeds from sale of OREO property	(2,196)	(4,057)	(10,298)	(5,622)
Gain (loss) on sale of OREO	104	182	898	370
Total OREO, end of period	$ 15,203	$ 24,339	$ 15,203	$ 24,339