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, 2016	Mar. 31, 2015
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ 208,041	$ 345,206
Net earnings attributable to exchangeable limited partnership units	6,609	1,650
Gains, net of expenses, associated with exchangeable debt assumed exchanged	0	(1,614)
Adjusted net earnings attributable to common stockholders – Diluted	$ 214,650	$ 345,242
Weighted average common shares/units outstanding – Basic	524,205	514,022
Incremental weighted average effect on exchange of limited partnership units	17,543	3,794
Incremental weighted average effect of equity awards	1,814	2,394
Incremental weighted average effect on exchangeable debt assumed exchanged	0	8,812
Weighted average common shares/partnership units outstanding - Diluted	543,562	529,022
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic	$ 0.40	$ 0.67
Diluted	$ 0.39	$ 0.65
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	$ 214,275	$ 346,488
Net earnings attributable to exchangeable limited partnership units	375	368
Gains, net of expenses, associated with exchangeable debt assumed exchanged	0	(1,614)
Adjusted net earnings attributable to common stockholders – Diluted	$ 214,650	$ 345,242
Weighted average common shares/units outstanding – Basic	531,070	515,931
Incremental weighted average effect on exchange of limited partnership units	1,834	1,885
Incremental weighted average effect of equity awards	1,814	2,394
Incremental weighted average effect on exchangeable debt assumed exchanged	0	8,812
Weighted average common shares/partnership units outstanding - Diluted	543,562	529,022
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic	$ 0.40	$ 0.67
Diluted	$ 0.39	$ 0.65
Incremental weighted average effect on exchange of Class A convertible units	8,844	0
Prologis, L.P. [Member] | Class A Capital [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ 3,510	$ 0
Adjusted net earnings attributable to common stockholders – Diluted	3,510	0
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	$ 210,765	$ 346,488