|
Impairment Charges (Details Textual) (USD $)
|
1 Months Ended | 12 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
Parcels
UnconsolidatedInvestees
|
Dec. 31, 2011
Land_Position
UnconsolidatedInvestees
|
Dec. 31, 2011
Parcels
UnconsolidatedInvestees
|
Dec. 31, 2010
|
Dec. 31, 2009
|
Dec. 31, 2011
Prologis North American Industrial Fund [Member]
UnconsolidatedInvestees
|
Dec. 31, 2010
North America [Member]
|
Dec. 31, 2010
Europe [Member]
|
Dec. 31, 2011
Land Parcels [Member]
|
Dec. 31, 2010
Land Parcels [Member]
|
Dec. 31, 2009
Land Parcels [Member]
|
Dec. 31, 2010
Operating Properties [Member]
|
Dec. 31, 2011
Operating Properties [Member]
South Korea [Member]
|
|
| Property, Plant and Equipment [Line Items] | |||||||||||||
| Assets held for sale impairment charge | $ 687,600,000 | $ 137,000,000 | $ 77,400,000 | $ 2,700,000 | |||||||||
| Impairment charges | 21,200,000 | 21,200,000 | 21,200,000 | 168,800,000 | |||||||||
| Impairment of Real Estate Properties | 2,100,000 | 47,100,000 | 10,300,000 | ||||||||||
| Impairment of goodwill and other assets | 126,432,000 | 412,745,000 | 163,644,000 | 44,300,000 | |||||||||
| Net gains on dispositions, net of impairment charges, included in discontinued operations | 61,830,000 | 234,574,000 | 264,779,000 | ||||||||||
| Impairment of goodwill | 368,451,000 | 235,500,000 | 132,900,000 | ||||||||||
| Number of land parcels exchanged | 3 | 3 | 3 | ||||||||||
| Impairment of note receivable | 2,900,000 | 20,500,000 | |||||||||||
| Number of unconsolidated investees | 2 | 2 | 2 | 1 | |||||||||
| Impairment Charges (Textual) [Abstract] | |||||||||||||
| Impairment charges of other assets | 103,800,000 | 103,800,000 | 103,800,000 | 44,300,000 | |||||||||
| Impairment of investments in joint ventures | $ 41,400,000 | ||||||||||||