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SUBSEQUENT EVENTS (Merger Agreement) (Narrative) (Details) - Subsequent Event [Member] $ in Millions		1 Months Ended
	Nov. 06, 2020 USD ($)	Oct. 31, 2020 facility
Subsequent Event [Line Items]
Number of facilities \| facility		43
Prepayment penalty	$ 0.0
Term Loans [Member]
Subsequent Event [Line Items]
Repayment of debt	41.2
Class A Membership Units [Member] \| Development Property Investments [Member] \| New York City 4, New York City 5 and Orlando 5 [Member] \| Limited Liability Company that Owned the Property [Member] \| Loan Investments [Member]
Subsequent Event [Line Items]
Minority interest, ownership percentage		100.00%
Secured revolving credit facility [Member]
Subsequent Event [Line Items]
Repayment of debt	242.6
Interest Rate Contract [Member]
Subsequent Event [Line Items]
Loss on termination of interest rate contract	1.1
Restricted Stock [Member]
Subsequent Event [Line Items]
Amount received in respect of previously unvested awards	2.6
Long-Term Incentive Plan Units [Member]
Subsequent Event [Line Items]
Amount received in respect of previously unvested awards	$ 1.0