Goodwill and Other Intangible Assets - Components of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 33,567	$ 37,193
Accumulated Amortization	22,572	25,203
Net Carrying Amount	10,995	11,990
Covenants Not To Compete [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0	710
Accumulated Amortization	0	710
Net Carrying Amount	0	0
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,788	6,788
Accumulated Amortization	3,609	3,143
Net Carrying Amount	3,179	3,645
Customer Related Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,819	12,381
Accumulated Amortization	7,602	10,804
Net Carrying Amount	1,217	1,577
Servicing Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	17,960	17,314
Accumulated Amortization	11,361	10,546
Net Carrying Amount	$ 6,599	$ 6,768