DEBT OBLIGATIONS - Schedule of Borrowing Capacity (Details) $ in Thousands	Dec. 31, 2024 USD ($)
Residential mortgage loans, residential transition loans, SFR and commercial notes receivable | Secured Financing Agreements:
Debt Instrument [Line Items]
Borrowing Capacity	$ 6,485,023
Balance Outstanding	2,081,228
Available Financing	4,403,795
Loan originations | Secured Financing Agreements:
Debt Instrument [Line Items]
Borrowing Capacity	5,627,000
Balance Outstanding	3,780,365
Available Financing	1,846,635
CLOs | Secured Financing Agreements:
Debt Instrument [Line Items]
Borrowing Capacity	410,665
Balance Outstanding	172,239
Available Financing	238,426
Excess MSRs | Secured Financing Agreements:
Debt Instrument [Line Items]
Borrowing Capacity	350,000
Balance Outstanding	223,241
Available Financing	126,759
MSRs | Secured Notes And Bonds Payable
Debt Instrument [Line Items]
Borrowing Capacity	6,577,890
Balance Outstanding	5,845,839
Available Financing	732,051
Servicer advances | Secured Notes And Bonds Payable
Debt Instrument [Line Items]
Borrowing Capacity	4,150,000
Balance Outstanding	2,888,609
Available Financing	1,261,391
SFR | Secured Notes And Bonds Payable
Debt Instrument [Line Items]
Borrowing Capacity	200,000
Balance Outstanding	90,160
Available Financing	109,840
Consolidated funds | Liabilities Of Consolidated Funds
Debt Instrument [Line Items]
Borrowing Capacity	52,500
Balance Outstanding	0
Available Financing	52,500
Debt Excess Borrowing Capacity
Debt Instrument [Line Items]
Borrowing Capacity	23,853,078
Balance Outstanding	15,081,681
Available Financing	$ 8,771,397