v3.26.1
Disclosures about Fair Value of Assets and Liabilities - Quantitative Information about Unobservable Inputs (Details)
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Quantitative information about unobservable inputs    
Servicing rights $ 236,949,000 $ 217,296,000 [1]
Level 3    
Quantitative information about unobservable inputs    
Other real estate owned 4,297,000 60,145,000
Level 3 | Discount rate | Minimum    
Quantitative information about unobservable inputs    
Other real estate owned   0.06
Level 3 | Discount rate | Maximum    
Quantitative information about unobservable inputs    
Other real estate owned   0.09
Level 3 | Discount rate | Weighted Average    
Quantitative information about unobservable inputs    
Other real estate owned 0.32 0.09
Level 3 | Servicing rights | SBA    
Quantitative information about unobservable inputs    
Servicing rights $ 5,521,000 $ 4,816,000
Level 3 | Servicing rights | SBA | Discount rate    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.16 0.16
Level 3 | Servicing rights | SBA | Discount rate | Weighted Average    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.16 0.16
Level 3 | Servicing rights | SBA | Constant prepayment rate | Minimum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.11 0.10
Level 3 | Servicing rights | SBA | Constant prepayment rate | Maximum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.32 0.31
Level 3 | Servicing rights | SBA | Constant prepayment rate | Weighted Average    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.14 0.16
Level 3 | Servicing rights | Multi-family    
Quantitative information about unobservable inputs    
Servicing rights $ 178,754,000 $ 164,224,000
Level 3 | Servicing rights | Multi-family | Discount rate | Minimum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.08 0.08
Level 3 | Servicing rights | Multi-family | Discount rate | Maximum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.15 0.15
Level 3 | Servicing rights | Multi-family | Discount rate | Weighted Average    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.09 0.09
Level 3 | Servicing rights | Multi-family | Constant prepayment rate | Minimum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0 0
Level 3 | Servicing rights | Multi-family | Constant prepayment rate | Maximum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 1 1
Level 3 | Servicing rights | Multi-family | Constant prepayment rate | Weighted Average    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.08 0.08
Level 3 | Servicing rights | Multi-family | Earnings rate on escrows    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.04 0.03
Level 3 | Servicing rights | Multi-family | Earnings rate on escrows | Weighted Average    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.04 0.03
Level 3 | Servicing rights | Single family    
Quantitative information about unobservable inputs    
Servicing rights $ 37,084,000 $ 33,151,000
Level 3 | Servicing rights | Single family | Discount rate | Minimum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.09 0.09
Level 3 | Servicing rights | Single family | Discount rate | Maximum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.12 0.12
Level 3 | Servicing rights | Single family | Discount rate | Weighted Average    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.09 0.09
Level 3 | Servicing rights | Single family | Constant prepayment rate | Minimum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.03 0.03
Level 3 | Servicing rights | Single family | Constant prepayment rate | Maximum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 1 0.53
Level 3 | Servicing rights | Single family | Constant prepayment rate | Weighted Average    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.07 0.09
Level 3 | Servicing rights | Healthcare    
Quantitative information about unobservable inputs    
Servicing rights $ 15,590,000 $ 15,105,000
Level 3 | Servicing rights | Healthcare | Discount rate | Minimum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.10  
Level 3 | Servicing rights | Healthcare | Discount rate | Maximum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.13  
Level 3 | Servicing rights | Healthcare | Discount rate | Weighted Average    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.11 0.11
Level 3 | Servicing rights | Healthcare | Constant prepayment rate | Minimum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.01 0.01
Level 3 | Servicing rights | Healthcare | Constant prepayment rate | Maximum    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.19 1
Level 3 | Servicing rights | Healthcare | Constant prepayment rate | Weighted Average    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.05 0.07
Level 3 | Servicing rights | Healthcare | Earnings rate on escrows    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.04 0.03
Level 3 | Servicing rights | Healthcare | Earnings rate on escrows | Weighted Average    
Quantitative information about unobservable inputs    
Servicing asset, measurement input 0.04 0.03
Level 3 | Collateral-dependent impaired loans    
Quantitative information about unobservable inputs    
Collateral-dependent loans $ 52,897,000 $ 143,771,000
Level 3 | Collateral-dependent impaired loans | Minimum    
Quantitative information about unobservable inputs    
Marketability discount (as a percent) 0.05 0.12
Level 3 | Collateral-dependent impaired loans | Maximum    
Quantitative information about unobservable inputs    
Marketability discount (as a percent) 0.67 0.70
Level 3 | Collateral-dependent impaired loans | Weighted Average    
Quantitative information about unobservable inputs    
Marketability discount (as a percent) 0.35 0.31
Level 3 | Interest rate lock commitments    
Quantitative information about unobservable inputs    
Derivative assets $ 505,000 $ 227,000
Derivative liabilities $ 230,000 $ 107,000
Level 3 | Interest rate lock commitments | Loan closing rates | Minimum    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.48 0.45
Derivative liabilities (as a percent) 48 0.45
Level 3 | Interest rate lock commitments | Loan closing rates | Maximum    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 1 0.99
Derivative liabilities (as a percent) 100 0.99
Level 3 | Interest rate lock commitments | Loan closing rates | Weighted Average    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.88 0.99
Derivative liabilities (as a percent) 0.88 0.99
Level 3 | Put options | Market credit spread    
Quantitative information about unobservable inputs    
Derivative assets $ 41,061,000 $ 31,930,000
Derivative assets, (as a percent) 0.04 0.04
Level 3 | Put options | Market credit spread | Weighted Average    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.04 0.04
Level 3 | Interest rate floors | Discount rate    
Quantitative information about unobservable inputs    
Derivative assets $ 14,147,000 $ 9,540,000
Level 3 | Interest rate floors | Discount rate | Minimum    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.05 0.05
Level 3 | Interest rate floors | Discount rate | Maximum    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.08 0.07
Level 3 | Interest rate floors | Discount rate | Weighted Average    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.07 0.06
Level 3 | Credit default swaps | Discount rate    
Quantitative information about unobservable inputs    
Derivative assets $ 2,149,000  
Level 3 | Credit default swaps | Market credit spread    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.11  
Level 3 | Credit default swaps | Market credit spread | Weighted Average    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.11  
Level 3 | Credit default swaps | Corporate default rate | Minimum    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.01  
Level 3 | Credit default swaps | Corporate default rate | Maximum    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.07  
Level 3 | Credit default swaps | Corporate default rate | Weighted Average    
Quantitative information about unobservable inputs    
Derivative assets, (as a percent) 0.07  
[1] Derived from audited consolidated financial statements