Unconsolidated Entities - Summarized Financial Information of Co-Investment Ventures (Parenthetical) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012 Transactions Venture	Dec. 31, 2011 Property Investment Venture	Dec. 31, 2010
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Number of co-investment ventures	3	7
Period of investment acquisition		7 months
Gain (Loss) on disposition of property		$ 4,400,000
Earnings from unconsolidated entities, net	31,676,000	59,935,000	23,678,000
Capital contribution by company to repay maturing debt		17,100,000
Number of disposed Properties		21
Impairment charges related to unoperated properties		20,300,000
Number of investments in property funds		2
Capital contribution called by property fund to repay maturing debt		6,400,000
Intercompany notes receivable	19,700,000	41,200,000
Amount of debt on unconsolidated co-investment ventures	1,400,000,000
Guaranteed debt	30,400,000	28,000,000
Undepreciated cost		277,000,000
Number of types of transactions	3
PEPR [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Period of investment acquisition		5 months
U.S, Prologis North American Industrial Fund III [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Number of co-investment ventures	5
Gain (Loss) on disposition of property	9,400,000
Number of disposed Properties	38
Equity method investments, Extinguishment of Debt	25,100,000
Earnings from unconsolidated entities, net	5,000,000
Interest rate swap agreements	21,500,000
Interest rate swap agreements, Prologies share	4,300,000
Intercompany notes receivable		21,400,000
Prologis SGP Mexico [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Intercompany notes receivable		$ 19,800,000