Unconsolidated Entities - Summary of Remaining Equity Commitments (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	$ 2,519.8
Prologis Targeted U.S. Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	453.3
Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	384.2
Prologis European Properties Fund II [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	349.7
Europe Logistics Venture 1 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	158.2
Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	227.0
Prologis China Logistics Venture 1 and 2 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	947.4
Prologis [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	541.1
Prologis [Member] | Prologis Targeted U.S. Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	0
Prologis [Member] | Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	165.1
Prologis [Member] | Prologis European Properties Fund II [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	96.7
Prologis [Member] | Europe Logistics Venture 1 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	23.7
Prologis [Member] | Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	113.5
Prologis [Member] | Prologis China Logistics Venture 1 and 2 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	142.1
Venture Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	1,978.7
Venture Partners [Member] | Prologis Targeted U.S. Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	453.3
Venture Partners [Member] | Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	219.1
Venture Partners [Member] | Prologis European Properties Fund II [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	253.0
Venture Partners [Member] | Europe Logistics Venture 1 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	134.5
Venture Partners [Member] | Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	113.5
Venture Partners [Member] | Prologis China Logistics Venture 1 and 2 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	$ 805.3