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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Lease agreements with related parties
RELATED PARTY TRANSACTIONS
Ground lease income	$ 0.1	$ 0.0	$ 0.1	$ 0.0
Joint ventures related to affiliated real estate investments
RELATED PARTY TRANSACTIONS
Management fees	1.3	1.3	4.0	3.6
Amounts due to the Company from related parties	14.8		14.8		$ 15.4
Mortgage loans receivable from consolidated joint ventures	62.7		62.7		$ 32.4
Joint ventures related to affiliated real estate investments | Ventures
RELATED PARTY TRANSACTIONS
Acquisition fees	$ 0.4	$ 0.4	$ 0.6	$ 1.1

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