Unconsolidated Entities - Summary of Remaining Equity Commitments (Parenthetical) (Detail)	9 Months Ended	3 Months Ended	9 Months Ended	1 Months Ended	9 Months Ended		1 Months Ended			3 Months Ended
	Sep. 30, 2013 Property	Sep. 30, 2013 Prologis Targeted U.S. Logistics Fund [Member] USD ($)	Sep. 30, 2013 Prologis Targeted U.S. Logistics Fund [Member] USD ($)	Oct. 31, 2013 Prologis Targeted U.S. Logistics Fund [Member] October Two Thousand And Thirteen [Member] USD ($)	Sep. 30, 2013 Prologis European Properties Fund II [Member] USD ($)	Sep. 30, 2013 Prologis European Properties Fund II [Member] EUR (€)	Jun. 30, 2013 Prologis European Logistics Partners [Member] USD ($)	Jun. 30, 2013 Prologis European Logistics Partners [Member] EUR (€)	Mar. 19, 2013 Prologis European Logistics Partners [Member] Property	Mar. 31, 2013 Prologis European Logistics Partners [Member] USD ($) Property	Mar. 31, 2013 Prologis European Logistics Partners [Member] EUR (€)	Sep. 30, 2013 Third Party [Member] Prologis Targeted U.S. Logistics Fund [Member] USD ($)	Sep. 30, 2013 Third Party [Member] Prologis China Logistics Venture [Member] USD ($)
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Commitments from third parties, secured			$ 191,500,000		$ 436,400,000	€ 325,000,000							$ 36,000,000
Equity method investment remaining contribution				101,800,000	142,100,000	107,700,000	90,300,000	69,000,000				71,500,000	5,400,000
Additional equity commitments		100,000,000	100,000,000		165,500,000	125,000,000	180,500,000	138,000,000
venture capital for fund acquisition of properties		171,500,000		53,500,000
Equity method investments contribution					276,300,000	209,000,000
Equity method investment partner contribution					134,300,000	101,300,000
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	1								195	195	195