Acquired Loans Part 3 (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Feb. 15, 2013
Change in accretable difference on acquired loans [Abstract]
Accretable yield, beginning	$ (109,006)		$ (26,383)		$ 98,394
Additions due to acquisition	0	[1]	(98,394)	[1]
Accretion to interest income	12,709		7,816
Disposals	2,883		1,575
Reclassification to / (from) nonaccretable difference	(11,904)	[2]	(2,556)	[2]
Accretable yield, ending	$ (105,318)		$ (117,942)		$ 98,394

[1] Accretable yield on loans acquired from BancTrust on February 15, 2013, adjusted for measurement period adjustments.

[2] Reclassifications from nonaccretable difference are due to lower loss expectations and improvements in expected cash flows.