SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2019 $ / shares shares	Jun. 30, 2020 USD ($) numberOfSegments $ / shares shares	Jun. 30, 2019 $ / shares shares
Accounting Policies [Abstract]
Potentially dilutive securities | shares	0	0	0	0
Distributions declared per share (in dollars per share) | $ / shares	$ 0.149	$ 0.1625	$ 0.298	$ 0.3250
Common share, distribution rate for share per day, declared | $ / shares			$ 0.04983333	$ 0.05416667
Number of reportable segments | numberOfSegments			1
Grants of rent deferrals, COVID-19	$ 1.5		$ 1.5
Grants of rental abatements, COVID-19	0.8		0.8
Deferred lease concessions, COVID-19	1.1		1.1
Reserve for payments not probable to collect, COVID-19	0.5		0.5
Reversal of rental income for abatements granted to tenants, COVID-19	$ 0.6		$ 0.6