Goodwill and Intangible Assets - Schedule of Intangible Assets Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 1,277	$ 1,373	$ 3,862	$ 4,552
Core Deposit Intangibles
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets	804	935	2,468	2,868
Customer List Intangibles
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets	326	317	979	952
Mortgage Servicing Rights
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 147	$ 121	$ 415	$ 732