Fair Value Measurements - Qualitative Valuation (Details) - Measured on non-recurring basis $ in Thousands	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value
Mortgage servicing rights	$ 2,264	$ 2,107
Significant Unobservable Inputs (Level 3)
Fair Value
Mortgage servicing rights	$ 2,264	$ 2,107
Significant Unobservable Inputs (Level 3) | Prepayment speeds and discount rates | Minimum | Discounted cash flow
Unobservable Inputs
Mortgage servicing rights	0.049	0.055
Significant Unobservable Inputs (Level 3) | Prepayment speeds and discount rates | Maximum | Discounted cash flow
Unobservable Inputs
Mortgage servicing rights	0.242	0.271
Significant Unobservable Inputs (Level 3) | Prepayment speeds and discount rates | Weighted Average | Discounted cash flow
Unobservable Inputs
Mortgage servicing rights	0.078	0.086
Significant Unobservable Inputs (Level 3) | Discount rate | Weighted Average | Discounted cash flow
Unobservable Inputs
Mortgage servicing rights	0.1500	0.1450