Unconsolidated Entities - Additional Information (Detail)	12 Months Ended						1 Months Ended			1 Months Ended		12 Months Ended
	Dec. 31, 2012 USD ($) Investment Venture Property	Dec. 31, 2012 EUR (€) Venture Investment Property	Dec. 31, 2011 USD ($) Venture Property	Dec. 31, 2010 USD ($)	Dec. 31, 2012 Prologis Europe And Japan Properties [Member] Venture	Dec. 31, 2012 PEPR [Member] USD ($) Venture Property	Dec. 20, 2012 Co Investment Venture In Japan [Member] Property	Feb. 14, 2013 Co Investment Venture In Japan [Member] USD ($)	Feb. 14, 2013 Co Investment Venture In Japan [Member] JPY (¥)	Dec. 20, 2012 Prologis European Logistics Partners ("PELP") [Member] USD ($) Property	Nov. 20, 2012 Prologis European Logistics Partners ("PELP") [Member] EUR (€)	Dec. 31, 2012 Europe [Member] USD ($)	Dec. 31, 2012 Minimum [Member]	Dec. 31, 2012 Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest holds in unconsolidated joint venture										5000.00%			15.00%	50.00%
Unconsolidated co-investment ventures	1	1
Investments in unconsolidated property funds	11	11
Fees earned from other investees and third parties	$ 1,600,000		$ 10,400,000	$ 5,800,000
Joint venture initial term	15 years	15 years								15 years
Joint venture extended term	15 years	15 years								15 years
Number of acquired operating properties							12			195
Contributions by co-venture										1.6	1,200,000,000
Common Stock Shares Issued To Acquire Interest In joint Venture										6,000,000
Common stock strike price										$ 35.64
Aggregate purchase price of co-investment venture								1,900,000,000	173,000,000,000
Percentage of company's stepped up basis	100.00%	100.00%
Number of co-investment ventures	3	3	7		2	2
Cash proceed from contribution activity						5,000,000,000
Number of properties under development	1,853	1,853	1,797			207
New equity commitments, raised												1,600,000,000
Joint venture ownership percentage												50.00%
Joint venture Partnership percentage	50.00%	50.00%
Joint venture partners coinvestment	$ 1,600,000,000	€ 1,200,000,000
Joint venture investment ownership reduction after second anniversary	20.00%	20.00%