v2.4.0.6

Related Party Transactions (Details) | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Related Party Transactions [Abstract] |  |  |
Number of Limited partner units owned by related party | 78,728 |  |
Conversion of Limited partner ship units into common shares by related party | 0 | 22,431 | 183,024

X
- Definition Conversion of Limited partner ship units into common shares by related party. + References No definition available. + Details
Name: | pld_ConversionOfLimitedPartnerShipUnitsIntoCommonSharesByRelatedParty
Namespace Prefix: | pld_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Limited partner units owned by related party. + References No definition available. + Details
Name: | pld_NumberOfLimitedPartnerUnitsOwnedByRelatedParty
Namespace Prefix: | pld_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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