v3.26.1
Mortgage Servicing Rights - Data and Key Economic Assumptions Related to the Company's MRSs (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Data and key economic assumptions related to mortgage servicing rights    
Unpaid principal balance $ 5,659,879 $ 5,648,033
Weighted-average prepayment speed (CPR) 9.43% 10.90%
Estimated impact of a 10% increase $ (2,954) $ (2,953)
Estimated impact of a 20% increase $ (5,715) $ (5,719)
Discount rate 9.87% 9.85%
Estimated impact of a 10% increase $ (3,675) $ (3,199)
Estimated impact of a 20% increase $ (7,067) $ (6,195)
Weighted-average coupon interest rate 4.66% 4.59%
Weighted-average servicing fee (basis points) 33.74% 33.86%
Weighted-average remaining maturity (in years) 7 years 4 months 24 days 6 years 9 months 18 days