v2.4.0.6

Real Estate (Details Textual) (USD $) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2011 | Sep. 30, 2010 Building | Dec. 31, 2011 Customer sqft Property acre | Dec. 31, 2010 sqft Property acre | Dec. 31, 2009 | Jun. 02, 2011
Business Acquisition [Line Items] |  |  |  |  |  |
Number of real estate properties |  |  | 1,797 | 985 |  |
Acreage of land held for development |  |  | 10,723 | 8,990 |  |
Number of properties under development |  |  |  | 14 |  |
Square footage of under developed property |  |  |  | 4,900,000 |  |
Square footage of industrial property |  |  | 291,100,000 | 168,500,000 |  |
Number of Development Properties Contributed |  | 5 |  |  |  |
Impairment Charges | $ 97,000,000 |  | $ 21,237,000 | $ 736,612,000 | $ 331,592,000 |
Real Estate (Textual) [Abstract] |  |  |  |  |  |
Total expected investment upon completion of the properties under development |  |  | 1,200,000 |  |  |
Gains on acquisitions and dispositions of investments in real estate, net |  |  | 111,684,000 | 28,488,000 | 35,262,000 |
Gain from the acquisition of controlling interest in joint venture in Japan |  |  | 13,500,000 |  |  |
Business acquisition purchase price |  |  | 86,500,000 |  |  | 5,856,500,000
Number of largest customers |  |  | 25 |  |  |
Annualized collected base rent from largest customers |  |  | 2.40% |  |  |
Annualized collected base rent from 25 largest customers |  |  | 17.90% |  |  |
Minimum lease payments on leases periods |  |  | greater than one year |  |  |
Pro rata share of specified operating expenses |  |  | 283,100,000 | 161,000,000 | 150,300,000 |
Japan disaster expense |  |  | 5,200,000 |  |  |
Cash proceeds from contribution activity |  |  | 590,800,000 |  |  |
Expected future amortization of leasing commissions |  |  | 220,600,000 |  |  |
Market leases and rent leveling assets |  |  | 269,600,000 |  |  |
Prologis European Properties Fund II [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Square footage of development property Contributed |  |  | 2,300,000 |  |  |
Number of properties under development |  |  | 9 |  |  |
Prologis Targeted U.S. Logistics Fund [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Square footage of development property Contributed |  |  | 4,200,000 |  |  |
Number of properties under development |  |  | 40 |  |  |
Prologis China Logistics Venture [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Square footage of development property Contributed |  |  | 600,000 |  |  |
Number of properties under development |  |  | 4 |  |  |
Prologis Europe Logistics Fund [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Square footage of development property Contributed |  |  | 700,000 |  |  |
Number of properties under development |  |  | 4 |  |  |
Japan [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of buildings related to repairs |  |  | 1 |  |  |
Maximum [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Operating leases lease term |  |  | 61 years |  |  |
Minimum [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Operating leases lease term |  |  | 1 year |  |  |
Merger [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of real estate properties |  |  | 628 | 220 |  |
Acreage of land held for development |  |  | 2,234 |  |  |
Number of properties under development |  |  | 8 | 10 |  |
Square footage of under developed property |  |  | 2,500,000 |  |  |
Square footage of industrial property |  |  | 76,100,000 | 50,200,000 |  |
PEPR [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of real estate properties |  |  | 8 |  |  |
Square footage of under developed property |  |  | 1,500,000 |  |  |
Gain from the consolidation of PEPR |  |  | 85,900,000 |  |  |
Real Estate (Textual) [Abstract] |  |  |  |  |  |
Business acquisition purchase price |  |  | 1,626,900,000 |  |  |
Pre-Stabilized Completed Properties [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of properties under development |  |  | 4 |  |  |
Square footage of under developed property |  |  | 2,300,000 |  |  |
Real estate properties [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Impairment Charges |  |  | $ 23,900,000 | $ 824,300,000 | $ 331,600,000 |
Development Portfolio [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of properties under development |  |  | 26 |  |  |
Square footage of under developed property |  |  | 7,200,000 |  |  |

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