v2.4.1.9

Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract] |  |
Percentage of agreement indemnification | 100.00%pld_PercentageOfActualCapitalGainsTaxLiabilitiesUsedForIndemnificationAmount |
Outstanding performance and surety bonds | $ 54.5 pld_OutstandingPerformanceAndSuretyBonds | $ 25.5 pld_OutstandingPerformanceAndSuretyBonds

X
- Definition Outstanding performance and surety bonds. + References No definition available. + Details
Name: | pld_OutstandingPerformanceAndSuretyBonds
Namespace Prefix: | pld_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of Actual Capital Gains Tax Liabilities Used For Indemnification Amount + References No definition available. + Details
Name: | pld_PercentageOfActualCapitalGainsTaxLiabilitiesUsedForIndemnificationAmount
Namespace Prefix: | pld_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration