FDIC Indemnification Asset - Additional Information (Details) - USD ($) $ in Thousands		12 Months Ended
	Apr. 15, 2011	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
F D I C Indemnification Asset [Abstract]
FDIC loss-share agreement covered loans and other real estate losses	80.00%
FDIC true-up provisions		$ 2,500	$ 2,100
Amortization of the FDIC indemnification asset		(2,583)	(2,074)	$ (2,469)
Reduction of FDIC indemnification asset included in other noninterest income - Covered Loans		$ 929	$ 800	$ 3,400