Earnings Per Common Share / Unit - Schedule of Earnings Per Share Basic and Diluted by Common Class (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders	$ 265,416	$ 202,412
Noncontrolling interest attributable to exchangeable limited partnership units	50	1,003
Interest expense on exchangeable debt assumed exchanged	4,235	4,216
Adjusted net earnings (loss) attributable to common stockholders	269,701	207,631
Weighted average common partnership units outstanding - Basic	461,468	459,203
Incremental weighted average effect on exchange of limited partnership units	1,146	3,347
Incremental weighted average effect of stock awards and warrants	2,566	1,678
Incremental weighted average effect on exchange of certain exchangeable debt	11,879	11,879
Weighted average common partnership units outstanding - Diluted	477,059	476,107
Net earnings per share attributable to common stockholders - Basic	$ 0.58	$ 0.44
Net earnings per share attributable to common stockholders - Diluted	$ 0.57	$ 0.44
Prologis, L.P. [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders	266,548	203,353
Noncontrolling interest attributable to exchangeable limited partnership units	50	62
Interest expense on exchangeable debt assumed exchanged	4,235	4,216
Adjusted net earnings (loss) attributable to common stockholders	$ 270,833	$ 207,631
Weighted average common partnership units outstanding - Basic	463,361	461,259
Incremental weighted average effect on exchange of limited partnership units	1,146	1,291
Incremental weighted average effect of stock awards and warrants	2,566	1,678
Incremental weighted average effect on exchange of certain exchangeable debt	11,879	11,879
Weighted average common partnership units outstanding - Diluted	478,952	476,107
Net earnings per share attributable to common stockholders - Basic	$ 0.58	$ 0.44
Net earnings per share attributable to common stockholders - Diluted	$ 0.57	$ 0.44