SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Assets Held for Sale) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) property	Dec. 31, 2019 USD ($) property
Accounting Policies [Abstract]
Expected period of sale	24 months
Number of real estate reclassified from held for sale | property	15
Number of real estate property held for sale | property	2	29
Real estate held for sale placed back in service	$ 228.4
Assets held for sale	8.0	$ 351.9
Mortgage notes payable	$ 5.0