Loan Servicing (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Servicing Assets at Fair Value [Line Items]
Serviced sold mortgage loans	$ 2,132,000	$ 1,972,000	$ 1,447,000
Serviced sold mortgage loans with recourse	3,300	1,700	2,300
Mortgage loans sold with recourse, reserve	$ 57	$ 30
Mortgage servicing rights, discount rate	12.00%	12.00%
Bank Servicing [Member]
Servicing Assets at Fair Value [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 29,812	$ 37,611	15,500
Bank Servicing [Member] | Real Estate Loan [Member]
Servicing Assets at Fair Value [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 5,300	$ 4,100	$ 3,600
Minimum
Servicing Assets at Fair Value [Line Items]
Mortgage servicing rights, constant prepayment speeds	11.10%	13.20%
Maximum
Servicing Assets at Fair Value [Line Items]
Mortgage servicing rights, constant prepayment speeds	27.90%	27.54%
Mortgages [Member]
Servicing Assets at Fair Value [Line Items]
Servicing Asset at Amortized Cost, Fair Value	$ 15,300	$ 12,200