Unconsolidated Entities - Summary of Remaining Equity Commitments (Parenthetical) (Detail)	3 Months Ended			1 Months Ended	3 Months Ended		1 Months Ended
	Mar. 31, 2013 Prologis Targeted U.S. Logistics Fund [Member] USD ($)	Mar. 31, 2013 Prologis European Properties Fund II [Member] USD ($)	Mar. 31, 2013 Prologis European Properties Fund II [Member] EUR (€)	Mar. 19, 2013 Prologis European Logistics Partners [Member] Property	Mar. 31, 2013 Prologis European Logistics Partners [Member] USD ($) Buildings	Mar. 31, 2013 Prologis European Logistics Partners [Member] EUR (€)	Apr. 30, 2013 Subsequent Event [Member] Prologis European Properties Fund II [Member] USD ($)	Apr. 30, 2013 Subsequent Event [Member] Prologis European Properties Fund II [Member] EUR (€)
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Commitments from third parties, Secured	$ 5,000,000
Equity method investments contribution							63,700,000	49,000,000
Equity method investment partner contribution							52,000,000	40,000,000
Commitments from third parties, Secured		38,400,000	30,000,000
Equity method investment remaining contribution		11,700,000	9,000,000
Investment closed with NBIM					3,100,000,000	2,400,000,000
Partner capital, contributions					$ 1,600,000,000	€ 1,200,000,000
Number of properties contributed to venture				195	195	195