Receivable from FDIC for Loss Share Agreements (Changes in Receivable from FDIC) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Receivable From FDIC For Loss Share Agreements [Abstract]
FDIC Indemnification Asset	$ 45,140	$ 100,553	$ 45,140	$ 100,553	$ 49,959	$ 93,397	$ 158,013	$ 270,192
Receivable From FDIC For Loss Share Agreements [Roll Forward]
Accretion of discounts and premiums, net	(6,362)	(20,553)	(37,028)	(65,734)
Receipt of payments from FDIC	1,130	1,431	5,479	(45,103)
Post-acquisition and other adjustments, net	$ 413	$ (38,338)	$ (16,708)	$ (58,802)