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REVENUES - Contract Balances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Contract with Customer, Liability [Abstract]
Contract with customer - asset	$ 289	$ 460
Contract with customer - asset - 2019	(282)
Contract with customer - asset - 2020	(3)
Contract with customer - asset - 2021	0
Contract with customer - asset - 2022	0
Contract with customer - asset - 2023	(4)
Contract with customer - liability	$ 265	$ 98
Lease commission recognized upon tenant opening (as a percent)	50.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability	$ (103)
Expected timing of satisfaction of remaining performance obligation	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-02
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability	$ (769)
Expected timing of satisfaction of remaining performance obligation	5 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability	$ (54)
Expected timing of satisfaction of remaining performance obligation	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability	$ (54)
Expected timing of satisfaction of remaining performance obligation	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability	$ (54)
Expected timing of satisfaction of remaining performance obligation	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability	$ 0
Expected timing of satisfaction of remaining performance obligation	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability	$ (5,599)
Expected timing of satisfaction of remaining performance obligation	15 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2039-01-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability	$ (48,277)
Expected timing of satisfaction of remaining performance obligation	0 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2039-01-02
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability	$ (54,645)
Expected timing of satisfaction of remaining performance obligation

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