Noncontrolling Interests - Noncontrolling Interest Summary (Parenthetical) (Detail) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended						3 Months Ended	9 Months Ended		1 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Prologis Institutional Alliance Fund II [Member]	Jun. 30, 2013 Prologis Institutional Alliance Fund II [Member]	Dec. 31, 2012 Prologis Institutional Alliance Fund II [Member]	Sep. 30, 2013 Brazil Fund [Member] Property	Sep. 30, 2013 Brazil Fund [Member] Property	Dec. 31, 2012 Brazil Fund [Member]	May 31, 2013 Mexico Fondo Logistico [Member] sqft Property	Sep. 30, 2013 Prologis, L.P. [Member]	Dec. 31, 2012 Prologis, L.P. [Member]
Noncontrolling Interest [Line Items]
Outstanding limited partnership units	1,949,501		1,173,571	804,734	804,734						1,843,131	1,893,266
Limited partnership units redeemed for cash		1,053
Limited partnership units redeemed for common stock		27,751
Number of properties sold							1	3		5
Square footage of properties sold										700,000
Proceeds from sale of property										$ 52.1
Investments in unconsolidated entities							$ 139.6	$ 139.6
Parent Company's Ownership Percentage						28.20%	50.00%	50.00%	50.00%
Number of limited partnership units redeemed	50,135