Noncontrolling Interests - Noncontrolling Interest Summary (Parenthetical) (Detail) (USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended				3 Months Ended			1 Months Ended			3 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Brazil Fund [Member]	Dec. 31, 2013 Brazil Fund [Member]	Sep. 30, 2014 Limited Partnership Interests [Member]	Sep. 30, 2014 Prologis, L.P. [Member]	Dec. 31, 2013 Prologis, L.P. [Member]	Jun. 30, 2014 Mexico Fondo Logistico [Member]	Sep. 30, 2014 Mexico Fondo Logistico [Member]	Dec. 31, 2013 Mexico Fondo Logistico [Member]	Jun. 30, 2014 Prologis AMS [Member] Property	Dec. 31, 2013 Prologis AMS [Member]
Noncontrolling Interest [Line Items]
Outstanding limited partnership units	1,887,000	1,949,000				1,767,000	1,767,000
Limited partnership units converted in to cash	62,000
Operating Partnership non controlling interest								$ 34.6
Investments in unconsolidated entities			164.5
Parent Company's Ownership Percentage			50.00%	50.00%					20.00%	20.00%		38.50%
Number of disposed properties											2
Proceeds from sale of property											$ 63.9
Number of share options issued					113,000