Earnings Per Common Share or Unit - Computation of Basic and Diluted Earnings Per Share Unit (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ 365,902	$ 203,255
Net earnings attributable to exchangeable limited partnership units	10,693	5,967
Adjusted net earnings attributable to common stockholders – Diluted	$ 376,595	$ 209,222
Weighted average common shares/units outstanding – Basic	532,185	528,721
Incremental weighted average effect on exchange of limited partnership units	16,270	16,455
Incremental weighted average effect of equity awards	5,668	4,834
Weighted average common shares/partnership units outstanding - Diluted	554,123	550,010
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic	$ 0.69	$ 0.38
Diluted	$ 0.68	$ 0.38
Prologis, L.P. [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ 376,425	$ 208,878
Net earnings attributable to exchangeable limited partnership units	170	344
Adjusted net earnings attributable to common stockholders – Diluted	$ 376,595	$ 209,222
Weighted average common shares/units outstanding – Basic	538,977	534,685
Incremental weighted average effect on exchange of Class A convertible units	8,512	8,664
Incremental weighted average effect on exchange of limited partnership units	966	1,827
Incremental weighted average effect of equity awards	5,668	4,834
Weighted average common shares/partnership units outstanding - Diluted	554,123	550,010
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic	$ 0.69	$ 0.38
Diluted	$ 0.68	$ 0.38
Prologis, L.P. [Member] | Class A Common [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ (5,853)	$ (3,331)
Adjusted net earnings attributable to common stockholders – Diluted	5,853	3,331
Prologis, L.P. [Member] | Common Units
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ 370,572	$ 205,547