v2.4.0.6

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 |  |  |  |  |  |  |  |  |

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- Definition Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -Clause 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 72 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 47 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13854-109267 + Details
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