FAIR VALUE MEASUREMENTS - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2024 USD ($)
Schedule of Equity Method Investments [Line Items]
Fair Value	$ 68.5
Notes payable of consolidated funds	$ 221.8
Excess MSRs | Weighted Average
Schedule of Equity Method Investments [Line Items]
Discount rate	8.80%
Excess MSRs | Minimum
Schedule of Equity Method Investments [Line Items]
Discount rate	8.50%
Excess MSRs | Maximum
Schedule of Equity Method Investments [Line Items]
Discount rate	9.00%
MSRs | Weighted Average
Schedule of Equity Method Investments [Line Items]
Discount rate	8.90%
MSRs | Minimum
Schedule of Equity Method Investments [Line Items]
Discount rate	8.70%
MSRs | Maximum
Schedule of Equity Method Investments [Line Items]
Discount rate	10.30%