Unconsolidated Entities - Summary of Remaining Equity Commitments (Parenthetical) (Detail) $ in Millions	1 Months Ended
	Jan. 31, 2016 USD ($)	Mar. 31, 2016 $ / €
Prologis Targeted Europe Logistics Fund [Member] | U.S. Dollars to Euro [Member]
Schedule Of Equity Method Investments [Line Items]
Exchange rate		1.14
Prologis European Properties Fund II [Member] | U.S. Dollars to Euro [Member]
Schedule Of Equity Method Investments [Line Items]
Exchange rate		1.14
Europe Logistics Venture 1 [Member] | U.S. Dollars to Euro [Member]
Schedule Of Equity Method Investments [Line Items]
Exchange rate		1.14
Prologis China Logistics Venture [Member]
Schedule Of Equity Method Investments [Line Items]
Increase equity commitments | $	$ 882.4
Equity commitments fund for future development | $	$ 132.4