Investments in Unconsolidated Real Estate Joint Ventures Unconsolidated Real Estate Joint Ventures (Details) (USD $)
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6 Months Ended | ||||||||||
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Jun. 30, 2012
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Dec. 31, 2011
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Jun. 30, 2012
Partnership Interest [Member]
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Jun. 30, 2012
Houston [Member]
SquareFeet
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Jun. 30, 2012
Deer Park Warehouse [Member]
SquareFeet
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Jun. 30, 2012
Deer Park [Member]
SquareFeet
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Jun. 30, 2012
Wisconsin Dells [Member]
SquareFeet
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Jun. 30, 2012
National Harbor [Member]
SquareFeet
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Jun. 30, 2012
RioCan Canda [Member]
SquareFeet
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Jun. 30, 2012
Westgate [Member]
SquareFeet
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Jun. 30, 2012
Other [Member]
SquareFeet
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Schedule of Equity Method Investments [Line Items] | |||||||||||
Equity Method Investment, Ownership Percentage | 50.00% | 33.30% | 33.30% | 50.00% | 50.00% | 50.00% | 58.00% | 50.00% | |||
Square Footage of Real Estate Property | 0 | 29,253 | 741,976 | 265,086 | 0 | 155,522 | 0 | 0 | |||
Equity Method Investments | $ 72,400,000 | $ 28,500,000 | $ 72,400,000 | $ 21,000,000 | $ 0 | $ 4,100,000 | $ 3,900,000 | $ 900,000 | $ 24,000,000 | $ 18,300,000 | $ 200,000 |
Joint Venture Debt | $ 273,000,000 | $ 0 | $ 1,800,000 | $ 246,900,000 | $ 24,300,000 | $ 0 | $ 0 | $ 0 | $ 0 |