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Unconsolidated Investees (Details Textual)
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1 Months Ended | 3 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 3 Months Ended | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Oct. 31, 2011
USD ($)
sqft
Property
|
Jun. 30, 2011
|
Apr. 30, 2011
Units
|
Dec. 31, 2011
USD ($)
sqft
Partner
Property
CoinvestmentVenture
|
Sep. 30, 2011
USD ($)
Property
sqft
|
Jun. 30, 2011
USD ($)
Investment
|
Dec. 31, 2010
USD ($)
Property
InterestRateSwapContract
|
Sep. 30, 2010
Building
sqft
|
Dec. 31, 2011
USD ($)
sqft
Partner
Investor
Property
CoinvestmentVenture
|
Dec. 31, 2010
USD ($)
Property
|
Dec. 31, 2009
USD ($)
|
Dec. 31, 2011
Merger [Member]
Property
|
Dec. 31, 2010
Merger [Member]
Property
|
Dec. 31, 2011
Venture Capital Funds [Member]
USD ($)
|
Dec. 31, 2011
Venture Capital Funds [Member]
EUR (€)
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Dec. 31, 2011
Maximum [Member]
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Dec. 31, 2011
Minimum [Member]
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Dec. 31, 2011
Korea [Member]
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Dec. 31, 2010
Korea [Member]
USD ($)
|
Dec. 31, 2010
Europe [Member]
USD ($)
|
Dec. 31, 2009
Europe [Member]
USD ($)
|
Dec. 31, 2011
North America [Member]
USD ($)
|
Dec. 31, 2011
Asia [Member]
USD ($)
|
Dec. 31, 2011
Prologis Brazil Logistics Partners Fund 1 [Member]
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Oct. 31, 2011
Prologis Targeted European Logistics Fund [Member]
USD ($)
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Oct. 31, 2011
Prologis Targeted European Logistics Fund [Member]
EUR (€)
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Dec. 31, 2011
Prologis European Properties [Member]
USD ($)
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Dec. 31, 2011
Prologis North American Industrial Fund [Member]
USD ($)
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Dec. 31, 2011
Brazil JVS [Member]
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| Schedule of Equity Method Investments [Line Items] | |||||||||||||||||||||||||||||
| Ownership percentage in property fund | 50.00% | 10.00% | 50.00% | 10.00% | |||||||||||||||||||||||||
| Number of Joint Venture Partners | 1 | 1 | |||||||||||||||||||||||||||
| Number of unconsolidated co-investment ventures | 15 | 15 | |||||||||||||||||||||||||||
| Fees earned from other investees and third parties | $ 10,400,000 | $ 5,800,000 | $ 26,000,000 | ||||||||||||||||||||||||||
| Termination fee | 16,300,000 | ||||||||||||||||||||||||||||
| Number of properties disposed | 13 | 13 | |||||||||||||||||||||||||||
| Prologis equity commitment to ProLogis Mexico Fondo Logistico | 30,000,000 | 30,000,000 | 110,300,000 | 82,000,000 | |||||||||||||||||||||||||
| Number of properties contributed | 40 | ||||||||||||||||||||||||||||
| Total proceeds on properties | 7,900,000 | ||||||||||||||||||||||||||||
| Number of investments in property funds | 2 | ||||||||||||||||||||||||||||
| Rate in which conversion of preferred stock into common stock | one for one at our option | ||||||||||||||||||||||||||||
| Increase in ownership in purchase | 15,800,000 | ||||||||||||||||||||||||||||
| Reduction of ownership in property fund | 20.00% | 20.00% | |||||||||||||||||||||||||||
| Net loss on interest rate contracts | 8,900,000 | 0 | (35,000,000) | ||||||||||||||||||||||||||
| Impairment Charges | 97,000,000 | 21,237,000 | 736,612,000 | 331,592,000 | 24,800,000 | ||||||||||||||||||||||||
| Gain on investment in and advances | 13,500,000 | ||||||||||||||||||||||||||||
| Percentage of property sold to third party | 90.00% | ||||||||||||||||||||||||||||
| Percentage of effectively owned fund | 25.00% | ||||||||||||||||||||||||||||
| Percentage of operating properties | 5.00% | ||||||||||||||||||||||||||||
| Periods for investments acquired activity | 7 months | 6 months | 5 months | ||||||||||||||||||||||||||
| Capital contribution by company to repay maturing debt | (16.5) | 33,600,000 | (7,800,000) | ||||||||||||||||||||||||||
| Capital contribution by company to repay maturing debt | 6,400,000 | 6,400,000 | (24,800,000) | ||||||||||||||||||||||||||
| Real Estate Properties [Line Items] | |||||||||||||||||||||||||||||
| Number of real estate properties | 1,797 | 985 | 1,797 | 985 | 628 | 220 | |||||||||||||||||||||||
| Capital Contribution | 45,400,000 | ||||||||||||||||||||||||||||
| Estimated venture capital contribution | 81,800,000 | ||||||||||||||||||||||||||||
| Share of capital for funding acquisition | 12,300,000 | 9,100,000 | |||||||||||||||||||||||||||
| Unconsolidated Investees (Textual) [Abstract] | |||||||||||||||||||||||||||||
| Investments in unconsolidated property funds | 0 | 0 | |||||||||||||||||||||||||||
| Investments in unconsolidated co-investment ventures | 15 | 15 | |||||||||||||||||||||||||||
| Fund partner equity commitment to Prologis Mexico Fondo Logistico | 127,000,000 | 127,000,000 | |||||||||||||||||||||||||||
| Ownership percentage in property fund | less than 100% | less than 100% | |||||||||||||||||||||||||||
| Notes receivable from property funds | 41,400,000 | 21,400,000 | 41,400,000 | 21,400,000 | |||||||||||||||||||||||||
| Impairment charges related to unoperated properties | 20,300,000 | ||||||||||||||||||||||||||||
| Direct owned property value pledged as additional collateral | 287,400,000 | 287,400,000 | |||||||||||||||||||||||||||
| Gain on disposition of property | 4,400,000 | ||||||||||||||||||||||||||||
| Percentage of equity interest holds in unconsolidated joint venture | 50.00% | ||||||||||||||||||||||||||||
| Purchase ordinary units of PEPR | 11,100,000 | ||||||||||||||||||||||||||||
| Ownership percentage increase | 39.00% | ||||||||||||||||||||||||||||
| Number of fund partner | 1 | ||||||||||||||||||||||||||||
| Capital contribution by fund partner to repay maturing debt | 4,000,000 | ||||||||||||||||||||||||||||
| Number of institutional investors | 10 | ||||||||||||||||||||||||||||
| Number of settled interest rate swap contract | 2 | ||||||||||||||||||||||||||||
| Increase of preferred investment in property fund | 316,000,000 | ||||||||||||||||||||||||||||
| Percentage sold interest in property funds | 20.00% | ||||||||||||||||||||||||||||
| Number of contributed buildings | 5 | ||||||||||||||||||||||||||||
| Area of development properties | 700,000 | 4,200,000 | 600,000 | 1,200,000 | 2,300,000 | ||||||||||||||||||||||||
| Number of acquired property from third party | 2 | ||||||||||||||||||||||||||||
| Undepreciated cost | 277,000,000 | ||||||||||||||||||||||||||||
| Proceeds from co-investment venture | 77,800,000 | 189,100,000 | |||||||||||||||||||||||||||
| Amount of Acquisition | 66,300,000 | ||||||||||||||||||||||||||||
| Debt related to unconsolidated co-investment venture | $ 15,900,000 | $ 15,900,000 | |||||||||||||||||||||||||||