v2.4.1.9
Real Estate - Real Estate Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
sqft
Property
Jun. 30, 2014
sqft
Dec. 31, 2013
Property
sqft
Dec. 31, 2012
Property
sqft
Real Estate Properties [Line Items]        
Square Feet / Acres 260,700,000us-gaap_AreaOfRealEstateProperty 12,600,000us-gaap_AreaOfRealEstateProperty 264,300,000us-gaap_AreaOfRealEstateProperty 208,800,000us-gaap_AreaOfRealEstateProperty
Number of buildings 1,278us-gaap_NumberOfRealEstateProperties   1,323us-gaap_NumberOfRealEstateProperties 1,157us-gaap_NumberOfRealEstateProperties
Industrial operating properties:        
Total investments in real estate properties $ 22,190,145us-gaap_RealEstateInvestmentPropertyAtCost   $ 20,824,477us-gaap_RealEstateInvestmentPropertyAtCost  
Less accumulated depreciation 2,790,781us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation   2,568,998us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation  
Net investments in real estate properties 19,399,364us-gaap_RealEstateInvestmentPropertyNet   18,255,479us-gaap_RealEstateInvestmentPropertyNet  
Improved Land [Member]        
Industrial operating properties:        
Total investments in real estate properties 4,227,637us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandImprovementsMember
  4,074,647us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandImprovementsMember
 
Building and Improvements [Member]        
Real Estate Properties [Line Items]        
Square Feet / Acres 282,282,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
  267,097,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
 
Number of buildings 1,607us-gaap_NumberOfRealEstateProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
  1,610us-gaap_NumberOfRealEstateProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
 
Industrial operating properties:        
Total investments in real estate properties 14,407,815us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
  13,726,417us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
 
Development Portfolio, Including Cost of Land: Pre-stabilized [Member]        
Real Estate Properties [Line Items]        
Square Feet / Acres 7,448,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_AssetsDevelopmentIncludingCostOfLandPrestabilizedMember
  4,491,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_AssetsDevelopmentIncludingCostOfLandPrestabilizedMember
 
Number of buildings 24us-gaap_NumberOfRealEstateProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_AssetsDevelopmentIncludingCostOfLandPrestabilizedMember
  11us-gaap_NumberOfRealEstateProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_AssetsDevelopmentIncludingCostOfLandPrestabilizedMember
 
Industrial operating properties:        
Total investments in real estate properties 547,982us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_AssetsDevelopmentIncludingCostOfLandPrestabilizedMember
  204,022us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_AssetsDevelopmentIncludingCostOfLandPrestabilizedMember
 
Properties Under Development [Member]        
Real Estate Properties [Line Items]        
Square Feet / Acres 22,844,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_PropertiesUnderDevelopmentMember
  18,587,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_PropertiesUnderDevelopmentMember
 
Number of buildings 55us-gaap_NumberOfRealEstateProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_PropertiesUnderDevelopmentMember
  46us-gaap_NumberOfRealEstateProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_PropertiesUnderDevelopmentMember
 
Industrial operating properties:        
Total investments in real estate properties 925,998us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_PropertiesUnderDevelopmentMember
  816,995us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= pld_PropertiesUnderDevelopmentMember
 
Land [Member]        
Real Estate Properties [Line Items]        
Square Feet / Acres 9,017,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
  9,747,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
 
Industrial operating properties:        
Total investments in real estate properties 1,577,786us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
  1,516,166us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
 
Other Real Estate Investments [Member]        
Industrial operating properties:        
Total investments in real estate properties $ 502,927us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember
  $ 486,230us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember