Stockholders' Equity of REIT and Partners' Capital of Operating Partnership - Additional Information (Detail)	9 Months Ended
Sep. 30, 2012
Shareholders Equity [Line Items]
Third party ownership interest of common partnership units	0.41%

Percentage of common limited partnership interest.

No definition available.

Name:	pld_PercentageOfCommonLimitedPartnershipInterest
Namespace Prefix:	pld_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration