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Earnings Per Common Share or Unit - Computation of Basic and Diluted Earnings Per Share or Unit (Parenthetical) (Detail) - shares shares in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items] |  |
Total weighted average potential dilutive shares and units outstanding | 28,221 | 27,939
Prologis, L.P. [Member] |  |
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items] |  |
Total weighted average potentially dilutive Class A Units | 8,062 | 8,062
Total weighted average potentially dilutive other limited partnership units | 299 | 299
Total weighted average potentially dilutive equity awards | 7,179 | 7,709
Total weighted average potential dilutive shares and units outstanding | 15,540 | 16,070
Total weighted average potential dilutive common limited partnership units | 12,681 | 11,869

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