Loan Servicing Activity of MSRs and the related valuation allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Servicing Asset at Amortized Cost, Beginning Balance	$ 15,792	$ 15,264	$ 12,210
Servicing Asset at Amortized Cost, Additions	535	1,455	4,945
Servicing Asset at Amortized Cost, Amortization	1,759	2,313	3,512
Servicing Asset at Amortized Cost, Increase (Decrease) for Valuation Allowance Adjustment	88	1,386	1,621
Servicing Asset at Amortized Cost, Ending Balance	14,656	15,792	15,264
Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance, Beginning Balance	182	1,568	3,189
Valuation Allowance for Impairment of Recognized Servicing Assets, Additions (Deductions) for Expenses (Recoveries)	(88)	(1,386)	(1,621)
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance, Ending Balance	$ 94	$ 182	$ 1,568