FDIC Loss-Share Indemnification Asset - (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
FDIC Loss-Share Indemnification Asset [Abstract]
Eligible losses covered (percent)	80.00%
Eligible recoveries covered (percent)	80.00%
Changes in FDIC Loss Share Indemnification Asset [Roll Forward]
Balance at January 1, 2015	$ 12,516
Acquisition of Heritage	2,322
Changes in expected cash flows from initial estimates on:
Covered Loans	(2,775)
Covered OREO	(68)
Reimbursable expenses	372
Accretion	0
Reimbursements received from the FDIC	(4,323)
Balance at September 30, 2015	$ 8,044