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Noncontrolling Interests - Noncontrolling Interest Summary (Parenthetical) (Detail) - USD ($)
shares in Thousands, $ in Millions
1 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2017
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Noncontrolling Interest [Line Items]        
Outstanding limited partnership units, redeemed   265    
Business acquisition, common limited partnership units issued   4,100   4,600
Fair value of outstanding limited partnership units   $ 242.2   $ 241.8
LTIP Units [Member]        
Noncontrolling Interest [Line Items]        
Number of units outstanding   3,700   2,200
Class A Common [Member]        
Noncontrolling Interest [Line Items]        
Units outstanding   8,900   8,900
Conversion and exchange of units to shares   8,600   8,700
Common Stock [Member]        
Noncontrolling Interest [Line Items]        
Outstanding limited partnership units   1,600   1,600
Prologis North American Industrial Fund [Member]        
Noncontrolling Interest [Line Items]        
Acquisition of partner's interest $ 710.2      
Prologis Brazil Logistics Partners Fund I [Member]        
Noncontrolling Interest [Line Items]        
Acquisition of partner's interest $ 79.8      
Investments in unconsolidated entities       $ 113.1
Prologis, L.P. [Member] | Class A Common [Member] | Limited Partners [Member]        
Noncontrolling Interest [Line Items]        
Units outstanding   8,894   8,894
Prologis, L.P. [Member] | Common [Member] | Limited Partners [Member]        
Noncontrolling Interest [Line Items]        
Outstanding limited partnership units, redeemed   700 900  
Units outstanding   5,966   5,323
Conversion and exchange of units to shares   (677)    
Limited partners units redeemed value   $ 18.8