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Warehouse Receivables & Warehouse Lines of Credit - Schedule of Warehouse Receivables (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Warehouse Receivables And Warehouse Lines Of Credit [Abstract]      
Beginning balance $ 1,303,717    
Origination of mortgage loans 13,651,807 $ 17,015,839 $ 21,268,114
Gains (premiums on loan sales) 40,038    
Proceeds from sale of mortgage loans:      
Sale of mortgage loans (14,486,882)    
Cash collections of premiums on loan sales (40,038)    
Proceeds from sale of mortgage loans (14,526,920) (17,194,606) $ (20,937,521)
Net decrease in mortgage servicing rights included in warehouse receivables (13,288)    
Ending balance $ 455,354 $ 1,303,717