IDENTIFIED INTANGIBLE ASSETS AND LIABILITIES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Identified intangible assets, net of accumulated amortization	$ 57,332		$ 57,332		$ 48,121
Identified intangible liabilities, net of accumulated amortization	128,371		128,371		$ 128,830
Amortization of acquired below-market leases, net of above-market leases	2,200	$ 9,400	4,500	$ 11,800
Amortization expense of intangible assets	$ 2,200	$ 1,900	$ 4,200	$ 4,000