FDIC Loss Share Receivable (Changes in Receivable from FDIC) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
FDIC Loss Share Receivable [Abstract]
FDIC Indemnification Asset	$ 9,276	$ 45,140	$ 9,276	$ 45,140	$ 5,808	$ 28,701	$ 49,959	$ 93,397
Receivable From FDIC For Loss Share Agreements [Roll Forward]
Accretion of discounts and premiums, net	(2,343)	(6,362)	(8,835)	(37,028)
Receipt of payments from FDIC	13,915	1,130	24,805	5,479
Post-acquisition and other adjustments, net	$ (8,104)	$ 413	$ (35,395)	$ (16,708)