Mortgage Banking Activities - Schedule of net gains (losses) relating to free-standing derivative instruments used for risk management (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Mandatory forward sales contracts
Derivative [Line Items]
Derivative, gain (loss)	$ (78)	$ (4,455)
Best efforts forward sales contracts
Derivative [Line Items]
Derivative, gain (loss)	27	55
Interest rate lock commitments
Derivative [Line Items]
Derivative, gain (loss)	$ 1,412	$ 7,553