REAL ESTATE ASSETS - Impairment (Details) ft² in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) ft² state	Dec. 31, 2023 USD ($) ft² property	Dec. 31, 2022 USD ($) ft² property
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of real estate, number of properties	10	6	23
Area of real estate property impaired \| ft²	915	377	962
Property
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of real estate assets	$ 52.2	$ 20.4	$ 16.2
Condominium Units
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of real estate assets	9.1	14.7	16.1
Net Book Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate asset deemed to be impaired	183.2	100.2	140.1
Fair Value \| Property
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate asset deemed to be impaired	$ 131.0	$ 79.8	$ 123.9

CIM REAL ESTATE FINANCE TRUST, INC. 10-K