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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, 2021
Jan. 31, 2020
Jan. 31, 2019
2018 - 2020 Performance Period [Member] | Subsequent Event [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Performance pool $ 100,000    
Common stock shares 61    
Restricted stock units 242    
POP LTIP Units and LTIP Units 701    
Average price used to determine number of awards $ 99.67    
2017 - 2019 Performance Period [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Performance pool   $ 97,377  
Common stock shares   336  
Restricted stock units   0  
POP LTIP Units and LTIP Units   706  
Average price used to determine number of awards   $ 93.42  
2016 - 2018 Performance Period [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Performance pool     $ 101,633
Common stock shares     462
Restricted stock units     0
POP LTIP Units and LTIP Units     1,022
Average price used to determine number of awards     $ 68.50