Borrowings (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Disclosure [Abstract]
Borrowings	$ 6,329	$ 771,482
Maximum outstanding FHLB advances at any month end	645,000	1,200,000
Average outstanding FHLB advances	$ 194,600	$ 1,000,000
Federal Home Loan Bank, Advances, Activity for Year, Average Interest Rate at Period End	7.10%	1.20%