Unconsolidated Entities - Earnings on Investment in Co-Investment Ventures (Parenthetical) (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Schedule of Equity Method Investments [Line Items]
Earnings from unconsolidated entities	$ 21,151,000	$ 8,421,000	$ 50,897,000	$ 33,189,000
Third party investors portion reflected in strategic capital income	76,334,000	43,608,000	121,644,000	77,243,000
Nippon Prologis REIT Inc [Member]
Schedule of Equity Method Investments [Line Items]
Earned acquisition fees				5,800,000
Number of acquired properties				8
Unconsolidated Co-Investment Ventures [Member]
Schedule of Equity Method Investments [Line Items]
Earnings from unconsolidated entities	21,054,000	7,871,000	49,885,000	32,166,000
Third party investors portion reflected in strategic capital income	76,967,000	43,244,000	122,496,000	77,723,000
Disposal of Properties [Member] | Unconsolidated Co-Investment Ventures [Member]
Schedule of Equity Method Investments [Line Items]
Earnings from unconsolidated entities			4,800,000	8,700,000
Prologis Targeted U.S. Logistics Fund [Member]
Schedule of Equity Method Investments [Line Items]
Promote fee earned from venture			42,100,000
Third party investors portion reflected in strategic capital income			31,300,000
Expenses included in strategic capital expenses	$ 6,200,000