XML 92 R73.htm IDEA: XBRL DOCUMENT v3.22.0.1
Fair Value of Financial Instruments - Assumptions Used to Value Mortgage Servicing Rights (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Minimum    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Prepayment speeds 9.10% 11.82%
Discount rates 8.89% 7.83%
Maximum    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Prepayment speeds 36.51% 37.95%
Discount rates 10.39% 9.09%
Weighted Average    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Prepayment speeds 15.63% 22.08%
Discount rates 9.32% 8.27%