Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Total Goodwill	$ 0	$ 2,700
Goodwill Impairment Adjustment		(1,800,000)
Goodwill, Period Increase (Decrease)	2,715	1,784,936	$ 0
Goodwill	$ 0	$ 2,715	$ 1,787,651	$ 2,715
Core deposit intangible amortization period	10 years