Loan Servicing Activity of MSRs and the related valuation allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Servicing Asset at Amortized Cost, Beginning Balance	$ 15,264	$ 12,210	$ 10,070
Servicing Asset at Amortized Cost, Additions	1,455	4,945	8,627
Servicing Asset at Amortized Cost, Amortization	2,313	3,512	4,123
Servicing Asset at Amortized Cost, Increase (Decrease) for Valuation Allowance Adjustment	1,386	1,621	(2,364)
Servicing Asset at Amortized Cost, Ending Balance	15,792	15,264	12,210
Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance, Beginning Balance	1,568	3,189	825
Valuation Allowance for Impairment of Recognized Servicing Assets, Additions (Deductions) for Expenses (Recoveries)	(1,386)	(1,621)	2,364
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance, Ending Balance	$ 182	$ 1,568	$ 3,189