SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Rental revenue deemed uncollectible		$ 21,464	$ 1,107
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation		1 year
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation		40 years
COVID-19
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit loss, writeoff	$ 4,700	$ 10,700
Rental revenue deemed uncollectible	8,400	21,500
Rent deferrals granted, amount	2,600	2,600
Rent deferrals granted under lease modification method	2,400	2,400
Rent deferrals granted with lease term modifications	200	200
Abatements granted, aggregate amount	800	800
Abatements granted, portion under short-term arrangements	400	400
Abatements granted, portion under variable approach	100	100
Abatements granted, modifications	$ 300	$ 300