INTANGIBLES (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Intangible assets:
Goodwill	$ 1,043,479	$ 1,047,497
Accumulated amortization	(726,688)	(655,176)
Net intangible assets	$ 1,684,809	$ 1,772,535
Remaining Weighted Average Amortization Period in Years	20 years 6 months	19 years 2 months 12 days
Intangible liabilities:
Below market lease intangibles	$ 247,327	$ 256,034
Other lease intangibles	35,925	35,925
Accumulated amortization	(121,655)	(113,647)
Purchase option intangibles	3,568	3,568
Net intangible liabilities	$ 165,165	$ 181,880
Below market leases, remaining weighted average amortization period (in years)	14 years 3 months 18 days	14 years 2 months 12 days
Other lease intangibles, remaining weighted average amortization period (in years)	31 years 1 month 6 days	30 years 1 month 6 days
Net intangible liabilities, remaining weighted average amortization period (in years)	15 years 10 months 24 days	15 years 7 months 6 days
Above market lease intangibles
Intangible assets:
Intangible assets	$ 149,824	$ 155,161
Remaining Weighted Average Amortization Period in Years	6 years 4 months 24 days	7 years
In-place and other lease intangibles
Intangible assets:
Intangible assets	$ 1,182,349	$ 1,189,261
Remaining Weighted Average Amortization Period in Years	22 years 4 months 24 days	20 years 10 months 24 days
Other intangibles
Intangible assets:
Other intangibles	$ 35,845	$ 35,792
Remaining Weighted Average Amortization Period in Years	9 years 7 months 6 days	8 years 7 months 6 days