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Business Combination - Additional Information (Detail)
shares in Millions, ft² in Millions, $ in Billions
3 Months Ended 12 Months Ended
May. 29, 2015
ft²
Property
shares
Mar. 31, 2016
USD ($)
shares
Dec. 31, 2015
shares
Business Acquisition [Line Items]      
Business acquisition, common limited partnership units issued | shares   6.4 6.4
Prologis US Logistics Venture [Member]      
Business Acquisition [Line Items]      
Noncontrolling interests in real estate entities 55.00% 55.00% 55.00%
Contribution received from venture partner | $   $ 2.3  
Prologis US Logistics Venture [Member] | KTR Capital Partners and Affiliates [Member]      
Business Acquisition [Line Items]      
Number of buildings | Property 315    
Square feet 59.0    
Area of properties under development 3.6    
Area of properties to support potential build out 6.8    
Prologis US Logistics Venture [Member] | KTR Capital Partners and Affiliates [Member] | Common Limited Partnership Units      
Business Acquisition [Line Items]      
Business acquisition, common limited partnership units issued | shares 4.5