DEBT OBLIGATIONS - Schedule of Borrowing Capacity (Details) $ in Thousands	Mar. 31, 2025 USD ($)
Residential mortgage loans, residential transition loans, SFR and commercial notes receivable | Secured Financing Agreements:
Debt Instrument [Line Items]
Borrowing Capacity	$ 7,107,051
Balance Outstanding	2,149,735
Available Financing	4,957,316
Loan originations | Secured Financing Agreements:
Debt Instrument [Line Items]
Borrowing Capacity	5,877,000
Balance Outstanding	2,692,466
Available Financing	3,184,534
CLOs | Secured Financing Agreements:
Debt Instrument [Line Items]
Borrowing Capacity	424,435
Balance Outstanding	196,721
Available Financing	227,714
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	7,286,652
Balance Outstanding	5,789,600
Available Financing	1,497,052
Servicer advances | Secured Notes And Bonds Payable
Debt Instrument [Line Items]
Borrowing Capacity	4,240,000
Balance Outstanding	2,703,197
Available Financing	1,536,803
SFR | Secured Notes And Bonds Payable
Debt Instrument [Line Items]
Borrowing Capacity	200,000
Balance Outstanding	169,279
Available Financing	30,721
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	25,537,638
Balance Outstanding	13,924,239
Available Financing	$ 11,613,399