Earnings Per Common Share / Unit - Computation of Basic and Diluted Earnings Per Share Unit (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings (loss) attributable to common stockholders	$ 136,245	$ (7,534)	$ 213,626	$ 256,365
Noncontrolling interest attributable to exchangeable limited partnership units	493	(48)	767	1,446
Gains, net of expenses, associated with exchangeable debt assumed exchanged	(18,658)
Adjusted net earnings (loss) attributable to common stockholders	118,080	(7,582)	214,393	257,811
Weighted average common partnership units outstanding - Basic	499,292	497,989	499,045	482,007
Incremental weighted average effect on exchange of limited partnership units	1,843	1,859	1,792	3,099
Incremental weighted average effect of stock awards and warrants	3,074		3,374	3,303
Incremental weighted average effect on exchange of exchangeable debt	11,879
Weighted average common partnership units outstanding - Diluted	516,088	499,848	504,211	488,409
Net earnings (loss) per share attributable to common stockholders -
Basic	$ 0.27	$ (0.02)	$ 0.43	$ 0.53
Diluted	$ 0.23	$ (0.02)	$ 0.43	$ 0.53
Prologis, L.P. [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings (loss) attributable to common stockholders	136,738	(7,582)	214,393	257,374
Noncontrolling interest attributable to exchangeable limited partnership units				437
Gains, net of expenses, associated with exchangeable debt assumed exchanged	(18,658)
Adjusted net earnings (loss) attributable to common stockholders	$ 118,080	$ (7,582)	$ 214,393	$ 257,811
Weighted average common partnership units outstanding - Basic	501,135	499,848	500,837	483,889
Incremental weighted average effect on exchange of limited partnership units				1,217
Incremental weighted average effect of stock awards and warrants	3,074		3,374	3,303
Incremental weighted average effect on exchange of exchangeable debt	11,879
Weighted average common partnership units outstanding - Diluted	516,088	499,848	504,211	488,409
Net earnings (loss) per share attributable to common stockholders -
Basic	$ 0.27	$ (0.02)	$ 0.43	$ 0.53
Diluted	$ 0.23	$ (0.02)	$ 0.43	$ 0.53