Goodwill and Other Intangible Assets - Components of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 26,911	$ 27,980
Accumulated Amortization and Fair Value Adjustments	15,234	15,360
Net Carrying Amount	11,677	12,620
Core Deposit Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,520	1,520
Accumulated Amortization and Fair Value Adjustments	401	276
Net Carrying Amount	1,119	1,244
Customer Related Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	12,381	14,227
Accumulated Amortization and Fair Value Adjustments	7,719	8,728
Net Carrying Amount	4,662	5,499
Mortgage Servicing Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,010	12,233
Accumulated Amortization and Fair Value Adjustments	7,114	6,356
Net Carrying Amount	$ 5,896	$ 5,877