Quarterly report [Sections 13 or 15(d)]

Cash, Cash Equivalents and Restricted Cash - Restricted Cash and Cash Equivalents (Details)

v3.25.1
Cash, Cash Equivalents and Restricted Cash - Restricted Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Restricted Cash and Cash Equivalents Items [Line Items]    
Total $ 123,843 $ 313,028
For securities trading activity    
Restricted Cash and Cash Equivalents Items [Line Items]    
Total 700 950
For derivatives trading activity    
Restricted Cash and Cash Equivalents Items [Line Items]    
Total 302 43,398
For servicing activities    
Restricted Cash and Cash Equivalents Items [Line Items]    
Total 64,286 49,900
As restricted collateral for borrowings    
Restricted Cash and Cash Equivalents Items [Line Items]    
Total 58,489 218,715
Total restricted cash balances held by trading counterparties    
Restricted Cash and Cash Equivalents Items [Line Items]    
Total 123,777 312,963
Restricted cash balance pursuant to letter of credit on office lease    
Restricted Cash and Cash Equivalents Items [Line Items]    
Total $ 66 $ 65