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		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ 346,345	$ 876,218	$ 1,046,858	$ 1,346,416
Net earnings attributable to exchangeable limited partnership units	10,593	24,362	31,502	38,127
Adjusted net earnings attributable to common stockholders – Diluted	$ 356,938	$ 900,580	$ 1,078,360	$ 1,384,543
Weighted average common shares/units outstanding – Basic	574,520	531,288	546,612	530,036
Incremental weighted average effect on exchange of limited partnership units	18,153	15,641	17,097	16,150
Incremental weighted average effect of equity awards	4,974	7,234	4,890	5,432
Weighted average common shares/partnership units outstanding - Diluted	597,647	554,163	568,599	551,618
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic	$ 0.60	$ 1.65	$ 1.92	$ 2.54
Diluted	$ 0.60	$ 1.63	$ 1.90	$ 2.51
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	$ 356,765	$ 900,331	$ 1,077,823	$ 1,383,529
Net earnings attributable to exchangeable limited partnership units	173	249	537	1,014
Adjusted net earnings attributable to common stockholders – Diluted	$ 356,938	$ 900,580	$ 1,078,360	$ 1,384,543
Weighted average common shares/units outstanding – Basic	583,363	537,257	554,313	536,021
Incremental weighted average effect on exchange of Class A convertible units	8,412	8,588	8,467	8,625
Incremental weighted average effect on exchange of limited partnership units	898	1,084	929	1,540
Incremental weighted average effect of equity awards	4,974	7,234	4,890	5,432
Weighted average common shares/partnership units outstanding - Diluted	597,647	554,163	568,599	551,618
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic	$ 0.60	$ 1.65	$ 1.92	$ 2.54
Diluted	$ 0.60	$ 1.63	$ 1.90	$ 2.51
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	$ (5,039)	$ (14,233)	$ (16,216)	$ (21,911)
Adjusted net earnings attributable to common stockholders – Diluted	5,039	14,233	16,216	21,911
Prologis, L.P. [Member] | Common Unit [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ 351,726	$ 886,098	$ 1,061,607	$ 1,361,618