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Mortgage Servicing Rights - Schedule of Unpaid Principal Balance (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items]        
Mortgage servicing rights $ 12,645 $ 12,631 $ 12,963 $ 13,712
UPB serviced $ 913,573   $ 948,117  
Weighted average discount rate 8.90%   8.90%  
Weighted average conditional prepayment rate 9.80%   9.70%  
GNMA loans        
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items]        
Mortgage servicing rights $ 12,485 12,631 $ 12,748  
UPB serviced $ 795,352 $ 798,729 $ 820,070  
Weighted average discount rate 8.00% 8.00% 8.00%  
Weighted average conditional prepayment rate 5.60% 5.20% 5.60%  
BPC MC Trust loans        
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items]        
Mortgage servicing rights $ 160   $ 215  
UPB serviced $ 118,221   $ 128,047  
Weighted average discount rate 15.00%   15.00%  
Weighted average conditional prepayment rate 38.10%   36.50%