Derivative Financial Instruments Fair Value Gains and Losses on Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Net fair value gains (losses) on derivative financial instruments	$ (2,378)	$ 5,056	$ 831
Mortgage Banking Derivatives
Derivatives, Fair Value [Line Items]
Net fair value gains (losses) on derivative financial instruments	(3,392)	4,974	689
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Net fair value gains (losses) on derivative financial instruments	1,050	70	122
Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Net fair value gains (losses) on derivative financial instruments	$ (36)	$ 12	$ 20