v3.26.1
Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Mortgage loans at fair value $ 9,619,076   $ 9,932,729      
Investment securities at fair value, pledged 96,044   100,512      
Total assets 15,110,186   14,144,589      
Total liabilities 33,566   26,574      
IRLCs            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 18,847   27,780      
Derivative liability 15,531   6,475      
FLSCs            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 22,677   9,787      
Derivative liability 18,035   20,099      
Mortgage servicing rights            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Mortgage servicing rights 5,311,465 $ 4,591,855 4,073,781 $ 3,445,195 $ 3,321,457 $ 3,969,881
Other interest rate derivatives            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 42,077          
Level 1            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Mortgage loans at fair value 0   0      
Investment securities at fair value, pledged 0   0      
Total assets 21,819   0      
Total liabilities 0   0      
Level 1 | IRLCs            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 0   0      
Derivative liability 0   0      
Level 1 | FLSCs            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 0   0      
Derivative liability 0   0      
Level 1 | Mortgage servicing rights            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Mortgage servicing rights 0   0      
Level 1 | Other interest rate derivatives            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 21,819          
Level 2            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Mortgage loans at fair value 9,619,076   9,932,729      
Investment securities at fair value, pledged 96,044   100,512      
Total assets 9,758,055   10,043,028      
Total liabilities 18,035   20,099      
Level 2 | IRLCs            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 0   0      
Derivative liability 0   0      
Level 2 | FLSCs            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 22,677   9,787      
Derivative liability 18,035   20,099      
Level 2 | Mortgage servicing rights            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Mortgage servicing rights 0   0      
Level 2 | Other interest rate derivatives            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 20,258          
Level 3            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Mortgage loans at fair value 0   0      
Investment securities at fair value, pledged 0   0      
Total assets 5,330,312   4,101,561      
Total liabilities 15,531   6,475      
Level 3 | IRLCs            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 18,847   27,780      
Derivative liability 15,531   6,475      
Level 3 | FLSCs            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset 0   0      
Derivative liability 0   0      
Level 3 | Mortgage servicing rights            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Mortgage servicing rights 5,311,465   $ 4,073,781      
Level 3 | Other interest rate derivatives            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Derivative asset $ 0