Quarterly report pursuant to Section 13 or 15(d)

Assets Pledged as Collateral for Revolving Credit Facilities (Details)

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Assets Pledged as Collateral for Revolving Credit Facilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Dec. 31, 2021
Line of Credit Facility [Line Items]        
Mortgage servicing rights, at fair value $ 3,072,445 $ 2,984,937 $ 3,089,963 $ 2,191,578
Servicing advances 100,300 119,000    
Asset Pledged as Collateral        
Line of Credit Facility [Line Items]        
Mortgage servicing rights, at fair value 2,900,000 3,000,000    
Line of Credit [Member] | Asset Pledged as Collateral        
Line of Credit Facility [Line Items]        
Mortgage servicing rights, at fair value 2,000,000 1,800,000    
Servicing advances $ 58,000 $ 67,800