Goodwill and Other Intangible Assets Acquired Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		$ 6,249
Finite-Lived Intangible Assets, Accumulated Amortization	$ 4,233	578
Indefinite-lived Intangible Assets (Excluding Goodwill)		1,300
Intangible Assets, Gross (Excluding Goodwill)	15,756	7,549
Amortization of Intangible Assets	2,355	578	$ 0
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	14,456
Finite-Lived Intangible Assets, Accumulated Amortization	2,933	578
Amortization of Intangible Assets	2,400	600
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,300
Finite-Lived Intangible Assets, Accumulated Amortization	$ 1,300	$ 0