Goodwill and Other Intangible Assets - (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Total intangible amortization	$ 1,563	$ 1,697
Core Deposit Intangibles
Finite-Lived Intangible Assets [Line Items]
Total intangible amortization	1,530	1,664
Customer Relationship Intangible
Finite-Lived Intangible Assets [Line Items]
Total intangible amortization	$ 33	$ 33