Real Estate - Real Estate Assets (Parenthetical) (Detail) (USD $)	9 Months Ended				6 Months Ended	9 Months Ended							9 Months Ended
	Sep. 30, 2013 Property Venture	Dec. 31, 2012	Sep. 30, 2013 Land held for future development [Member] acre	Dec. 31, 2012 Land held for future development [Member] acre	Jun. 30, 2013 Prologis Japan Fund 1 [Member] Property	Sep. 30, 2013 Prologis Japan Fund 1 [Member] Property sqft	Sep. 30, 2013 Industrial Properties [Member] sqft Property	Dec. 31, 2012 Industrial Properties [Member] sqft Property	Sep. 30, 2013 Under Development Portfolio [Member] Property sqft	Dec. 31, 2012 Under Development Portfolio [Member] sqft Property	Sep. 30, 2013 Pre-Stabilized Completed Properties [Member] sqft Property	Dec. 31, 2012 Pre-Stabilized Completed Properties [Member] sqft Property	Sep. 30, 2013 Europe and Japan [Member] Property sqft
Real Estate Properties [Line Items]
Number of real estate properties							1,650	1,853
Square footage of property						9,900,000	268,500,000	316,300,000	15,100,000	13,200,000	6,300,000	4,800,000	58,300,000
Number of new ventures in foreign	2
Number of properties contributed for new ventures	1												207
Net investment in properties	$ 19,059,538,000	$ 23,328,463,000											$ 4,600,000,000
Proceeds from contribution of properties for new ventures	$ 4,900,000,000					$ 713,100,000
Number of properties purchased					14	30
Number of properties under development									32	30	14	15
Acreage of land held for development			10,217	10,915