Fair Value - Reconciliation of Assets Measured at Fair Value on Recurring Basis using Significant Unobservable Inputs (Level 3) (Details) - Mortgage Loan Interest Rate Lock Commitments - Significant Unobservable Inputs (Level 3) - Fair Value Measurements Recurring Basis - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Balance of recurring Level 3 assets at January 1st	$ 696	$ 2,607
Included in mortgage banking income	(471)	(1,805)
Balance of recurring Level 3 assets at March 31st	$ 225	$ 802