Acquired Loans Part 3 (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Feb. 15, 2013
Change in accretable difference on acquired loans [Abstract]
Accretable yield at beginning of period	$ (109,006)		$ (26,383)		$ 98,394
Additions due to acquisition	0	[1]	(98,394)	[1]
Accretion to interest income	38,433		28,927
Disposals	14,520		11,167
Reclassification to / (from) nonaccretable difference	(26,826)	[2]	(25,772)	[2]
Accretable yield at end of period	$ (82,879)		$ (110,455)		$ 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.