SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($) segment $ / shares shares	Mar. 31, 2020 $ / shares shares
Accounting Policies [Abstract]
Potentially dilutive securities (in shares) | shares	0	0
Distributions declared per share (in dollars per share) | $ / shares	$ 0.149	$ 0.149
Common share, distribution rate for share per month, declared (in dollars per share) | $ / shares	$ 0.04983333	$ 0.04983333
Number of reportable segments | segment	1
Grants of rent deferrals, COVID-19	$ 4.0
Grants of rental abatements, COVID-19	2.0
Deferred lease concessions, COVID-19	2.8
Reserve for payments not probable to collect, COVID-19	1.8
Reversal of rental income for abatements granted to tenants, COVID-19	$ 0.4