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Long-Term Compensation - Performance Pool awarded (Detail) - Prologis Out-Performance Plan [Member] - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
1 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Jan. 31, 2018
2017 - 2019 Performance Period [Member] | Subsequent Events [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Performance pool $ 75,000    
Common stock shares 266    
POP LTIP Units and LTIP Units 548    
Average price used to determine number of awards $ 92.21    
2016 - 2018 Performance Period [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Performance pool   $ 88,317  
Common stock shares   423  
POP LTIP Units and LTIP Units   924  
Average price used to determine number of awards   $ 65.57  
2015 - 2017 Performance Periods [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Performance pool     $ 110,230
Common stock shares     582
POP LTIP Units and LTIP Units     1,170
Average price used to determine number of awards     $ 62.65