RELATED-PARTY TRANSACTIONS AND ARRANGEMENTS - Narrative (Details) - USD ($) $ in Thousands, shares in Millions	6 Months Ended
Jun. 30, 2026	Dec. 31, 2025
Related Party Transaction [Line Items]
Earnout liability	$ 407,500	$ 0
Tax benefits percentage	0.85
Investments in managed funds and unconsolidated joint ventures	$ 608,109	$ 525,184
CLO subordinated note
Related Party Transaction [Line Items]
Investment in equity securities	15,800
Due to related parties
Related Party Transaction [Line Items]
Aggregate principal amount	527,000
Investments in managed funds and unconsolidated joint ventures	140,300
CMGH
Related Party Transaction [Line Items]
Earnout liability	$ 407,500
CIM Finance Holdings, LP (CMFH) \| CMFH Class A LP Units
Related Party Transaction [Line Items]
Limited partners units issued (in shares)	175.3
CIM Finance Holdings, LP (CMFH) \| CIM Real Estate Finance Trust, Inc.
Related Party Transaction [Line Items]
Voting ownership (in percent)	71.25%
CIM Group, LLC (CMGH) \| CIM Real Estate Finance Trust, Inc.
Related Party Transaction [Line Items]
Voting ownership (in percent)	28.75%

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