Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Changes in the FDIC loss-share indemnification asset
Balance at January 1	$ 12,516	$ 26,273
Additions through acquisition	2,673	0
Realized losses in excess of initial estimates on:
Loans	872	6,293
OREO	362	2,593
Reimbursable expenses	1,170	335
Amortization	(4,865)	(9,195)
Reimbursements received from the FDIC	(5,579)	(13,783)
Balance at December 31	$ 7,149	$ 12,516