Unconsolidated Entities - Summary of Remaining Equity Commitments (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Jul. 31, 2014 Prologis China Logistics Venture [Member]	Sep. 30, 2014 U.S. Dollars to Euro [Member] Prologis Targeted Europe Logistics Fund [Member]	Sep. 30, 2014 U.S. Dollars to Euro [Member] Prologis European Properties Fund II [Member]	Sep. 30, 2014 U.S. Dollars to Euro [Member] Europe Logistics Venture 1 [Member]	Sep. 30, 2014 British Pound Sterling to U.S. Dollar [Member] Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Exchange rate		1.26	1.26	1.26	1.62
Committed third party equity	$ 500