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Mortgage Servicing Rights, Net - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Mortgage Servicing Rights      
Mortgage servicing rights, net $ 531,203 $ 568,552  
Special servicing portfolio 2,600,000 1,700,000  
Primary Servicing Portfolio      
Mortgage Servicing Rights      
Mortgage servicing rights, net 62,200,000 56,200,000  
Limited Servicing Portfolio, Loans With Mortgage Servicing Rights      
Mortgage Servicing Rights      
Mortgage servicing rights, net 10,100,000 12,800,000  
Limited Servicing Portfolio, Loans Without Mortgage Servicing Rights      
Mortgage Servicing Rights      
Mortgage servicing rights, net 101,000,000 0  
Discount Rate One      
Mortgage Servicing Rights      
Decrease in fair value of servicing rights 18,100 18,300  
Discount Rate Two      
Mortgage Servicing Rights      
Decrease in fair value of servicing rights $ 35,400 $ 35,700  
Minimum      
Mortgage Servicing Rights      
Discount rates used in measuring fair value 6.10% 6.10%  
Minimum | Discount Rate One      
Mortgage Servicing Rights      
Increase in discount rate 1.00% 1.00%  
Maximum      
Mortgage Servicing Rights      
Discount rates used in measuring fair value 13.50% 13.50%  
Maximum | Discount Rate Two      
Mortgage Servicing Rights      
Increase in discount rate 2.00% 2.00%  
Mortgage Servicing Rights      
Mortgage Servicing Rights      
Mortgage servicing rights, net $ 531,203 $ 568,552 $ 550,302
Estimated fair value of MSRs $ 680,600 $ 667,600