Servicing Rights - Value Assumptions (Details) - Mortgage servicing rights	3 Months Ended	12 Months Ended
Mar. 31, 2023	Dec. 31, 2022
Servicing Assets at Fair Value [Line Items]
Constant prepayment rate (percent)	5.67%	6.64%
Discount rate (percent)	10.97%	11.25%

Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition

Estimated rate of prepayments of principal on servicing assets and servicing liabilities.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
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