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REVENUES - Narrative (Details) $ in Thousands		12 Months Ended
	Jan. 01, 2018 USD ($) affiliate	Dec. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Number of unconsolidated affiliates included in partial sale of real estate assets | affiliate	1
Tenant reimbursements period related to certain capital expenditure minimum		5 years
Tenant reimbursements period related to certain capital expenditure maximum		15 years
Lease commission recognized upon lease execution (as a percent)		50.00%
Accounting Standards Update 2017-05, Unconsolidated Affiliate Impact
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Effect of change on operating results	$ 57,850
Accounting Standards Update 2017-05, Joint Venture Impact
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Effect of change on operating results	901
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Dividends in excess of cumulative earnings	$ 196

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