Goodwill and Other Intangible Assets - (Details 1) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	$ 49,962	$ 47,952
Accumulated Amortization	(22,579)	(19,141)
Net Carrying Amount	27,383	28,811
Core Deposit Intangibles
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	47,992	45,982
Accumulated Amortization	(21,944)	(18,572)
Net Carrying Amount	26,048	27,410
Customer Relationship Intangible
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	1,970	1,970
Accumulated Amortization	(635)	(569)
Net Carrying Amount	$ 1,335	$ 1,401