Property and Equipment, Net - Additional Information (Details) (USD $)
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3 Months Ended | 9 Months Ended | 0 Months Ended | |||||||||
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
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Dec. 31, 2013
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Jun. 24, 2011
Shoppes At Palazzo [Member]
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Sep. 30, 2014
Shoppes At Palazzo [Member]
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Dec. 31, 2013
Shoppes At Palazzo [Member]
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Sep. 30, 2014
Construction in Progress [Member]
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Dec. 31, 2013
Construction in Progress [Member]
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Sep. 30, 2014
Construction in Progress [Member]
Other [Member]
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Dec. 31, 2013
Construction in Progress [Member]
Other [Member]
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Property, Plant and Equipment [Line Items] | ||||||||||||
Property and equipment, gross | $ 20,905,931,000 | $ 20,905,931,000 | $ 20,219,954,000 | $ 1,585,713,000 | $ 1,150,349,000 | $ 365,434,000 | $ 325,327,000 | |||||
Proceeds from sale of mall assets | 295,400,000 | |||||||||||
Deferred proceeds from sale of The Shoppes at The Palazzo | 268,667,000 | 268,667,000 | 268,541,000 | 266,200,000 | ||||||||
Property and equipment, net | 15,355,117,000 | 15,355,117,000 | 15,358,953,000 | 230,800,000 | 239,300,000 | |||||||
Accumulated depreciation and amortization | 5,550,814,000 | 5,550,814,000 | 4,861,001,000 | 80,500,000 | ||||||||
Capitalized interest expense | 2,900,000 | 900,000 | 6,200,000 | 3,300,000 | ||||||||
Capitalized internal costs | $ 9,600,000 | $ 5,900,000 | $ 23,700,000 | $ 16,900,000 |