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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 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	1.4	1.2	2.6	2.3
Amounts due to the Company from related parties	18.0		18.0		$ 15.4
Mortgage loans receivable from consolidated joint ventures	44.2		44.2		$ 32.4
Joint ventures related to affiliated real estate investments | Ventures
RELATED PARTY TRANSACTIONS
Acquisition fees	$ 0.2	$ 0.5	$ 0.2	$ 0.6

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