Goodwill and Other Intangible Assets Acquired Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		$ 14,456
Finite-Lived Intangible Assets, Accumulated Amortization	$ 6,496	4,233
Intangible Assets, Gross (Excluding Goodwill)	15,756	15,756
Amortization of Intangible Assets	2,263	2,355	$ 578
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	14,456
Finite-Lived Intangible Assets, Accumulated Amortization	5,196	2,933
Amortization of Intangible Assets	2,300	2,400	$ 600
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,300	1,300
Finite-Lived Intangible Assets, Accumulated Amortization	$ 1,300	$ 1,300