Goodwill And Other Intangible Assets Goodwill And Other Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Merger and acquisition costs	$ 0	$ 3,625	$ 829
Amortization of core deposit intangible	688	784	$ 0
County First Bank [Member] | Core deposit [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Merger and acquisition costs	$ 3,600
Estimated life of core deposit	8 years
Amortization of core deposit intangible	$ 688	$ 784