Unconsolidated Entities - Summary of Remaining Equity Commitments (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	$ 2,506.2
Prologis Targeted U.S. Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	319.8
Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	423.1
Prologis European Properties Fund II [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	394.4
Europe Logistics Venture 1 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	159.7
Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	221.8
Prologis China Logistics Venture 1 and 2 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	987.4
Prologis [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	564.7
Prologis [Member] | Prologis Targeted U.S. Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments
Prologis [Member] | Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	181.1
Prologis [Member] | Prologis European Properties Fund II [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	100.6
Prologis [Member] | Europe Logistics Venture 1 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	24.0
Prologis [Member] | Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	110.9
Prologis [Member] | Prologis China Logistics Venture 1 and 2 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	148.1
Venture Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	1,941.5
Venture Partners [Member] | Prologis Targeted U.S. Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	319.8
Venture Partners [Member] | Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	242.0
Venture Partners [Member] | Prologis European Properties Fund II [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	293.8
Venture Partners [Member] | Europe Logistics Venture 1 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	135.7
Venture Partners [Member] | Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	110.9
Venture Partners [Member] | Prologis China Logistics Venture 1 and 2 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	$ 839.3