INTANGIBLES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Intangible assets:
Accumulated amortization	$ (484,791)	$ (458,919)
Net intangible assets	1,018,471	1,040,609
Remaining weighted average amortization period	20 years 4 months	19 years 9 months 18 days
Intangible liabilities:
Accumulated amortization	(131,659)	(119,549)
Purchase option intangibles	29,294	29,294
Net intangible liabilities	358,844	371,047
Remaining weighted average amortization period	15 years 2 months	15 years 1 month 6 days
Above market lease intangibles
Intangible assets:
Intangibles	214,152	214,353
Remaining weighted average amortization period	8 years 4 months	8 years 4 months 24 days
In-place and other lease intangibles
Intangible assets:
Intangibles	800,559	795,829
Remaining weighted average amortization period	24 years 9 months	24 years 1 month 6 days
Goodwill And Other Intangibles [Member]
Intangible assets:
Intangibles	488,551	489,346
Remaining weighted average amortization period	8 years 7 months	8 years 7 months 6 days
Below Market Lease [Domain]
Intangible liabilities:
Lease intangibles	429,106	429,199
Remaining weighted average amortization period	14 years 8 months	14 years 8 months 12 days
Other lease intangibles
Intangible liabilities:
Lease intangibles	$ 32,103	$ 32,103
Remaining weighted average amortization period	25 years 1 month	24 years 9 months 18 days