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								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ 118,363	$ 258,979	$ 140,240	$ 345,206	$ 408,609	$ 136,245	$ 72,715	$ 4,666	$ 862,788	$ 622,235	$ 315,422
Net earnings attributable to exchangeable limited partnership units									13,120	3,636	1,305
Gains, net of expenses, associated with exchangeable debt assumed exchanged									(1,614)	0	0
Adjusted net earnings attributable to common stockholders – Diluted									$ 874,294	$ 625,871	$ 316,727
Weighted average common shares/units outstanding – Basic									521,241	499,583	486,076
Incremental weighted average effect on exchange of limited partnership units									8,569	3,501	2,060
Incremental weighted average effect of equity awards and warrant									1,961	3,307	3,410
Incremental weighted average effect on exchangeable debt assumed exchanged									2,173	0	0
Weighted average common shares/partnership units outstanding - Diluted									533,944	506,391	491,546
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic	$ 0.23	$ 0.49	$ 0.27	$ 0.67	$ 0.82	$ 0.27	$ 0.15	$ 0.01	$ 1.66	$ 1.25	$ 0.65
Diluted	$ 0.23	$ 0.49	$ 0.27	$ 0.65	$ 0.81	$ 0.23	$ 0.13	$ 0.01	$ 1.64	$ 1.24	$ 0.64
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									$ 873,914	$ 624,436	$ 316,630
Net earnings attributable to exchangeable limited partnership units									1,994	1,435	97
Gains, net of expenses, associated with exchangeable debt assumed exchanged									(1,614)	0	0
Adjusted net earnings attributable to common stockholders – Diluted									$ 874,294	$ 625,871	$ 316,727
Weighted average common shares/units outstanding – Basic									525,912	501,349	487,936
Incremental weighted average effect on exchange of limited partnership units									1,848	1,735	200
Incremental weighted average effect of equity awards and warrant									1,961	3,307	3,410
Incremental weighted average effect on exchangeable debt assumed exchanged									2,173	0	0
Weighted average common shares/partnership units outstanding - Diluted									533,944	506,391	491,546
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic									$ 1.66	$ 1.25	$ 0.65
Diluted									$ 1.64	$ 1.24	$ 0.64
Incremental weighted average effect on exchange of Class A convertible units									2,050	0	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									$ 870,521	$ 624,436	$ 316,630
Prologis, L.P. [Member] | Class A convertible common units [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic									(3,393)	0	0
Adjusted net earnings attributable to common stockholders – Diluted									$ 3,393	$ 0	$ 0