VARIABLE INTEREST ENTITIES (Unconsolidated VIEs) (the Company is not the primary beneficiary, but has a variable interest) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Investments in unconsolidated entities	$ 21,630,000		$ 1,548,000
Borrowings	1,582,031,000		$ 1,676,200,000
65 E. Wacker Joint Venture, LLC
Variable Interest Entity [Line Items]
Investments in unconsolidated entities	$ 20,082,000
Fair value of joint venture		$ 20,300,000
VIE, Not Primary Beneficiary | Investment in RCT I and II
Variable Interest Entity [Line Items]
Ownership percentage in VIE	100.00%
Investments in unconsolidated entities	$ 1,500,000
VIE, Not Primary Beneficiary | Interest in RCT I
Variable Interest Entity [Line Items]
Investments in unconsolidated entities	$ 774,000
Percentage of value of trusts owned	3.00%
Borrowings	$ 25,800,000
VIE, Not Primary Beneficiary | Interest in RCT II
Variable Interest Entity [Line Items]
Investments in unconsolidated entities	$ 774,000
Percentage of value of trusts owned	3.00%
Borrowings	$ 25,800,000