Covered Assets and FDIC Loss-sharing Asset (Covered OREO at Carrying Value) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance, end of period	$ 35,927	$ 26,987
Covered Loans [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance, beginning of period	16,311	28,126
Transfers in	8,827	14,166
Additional OREO write-downs	(282)	(3,484)
Proceeds from sale of OREO property	(22,046)	(33,315)
Gain on sale of OREO	9,283	10,818
Balance, end of period	$ 12,093	$ 16,311