Noncontrolling Interests (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2011 Property	Dec. 31, 2010
Business Acquisition [Line Items]
Number of properties sold		1
Increase in non-controlling interest	$ 106.7
Outstanding limited partnership units	1,302,238	1,302,238	339,225
Noncontrolling Interests (Textual) [Abstract]
Percentage of common equity not owned	100.00%	100.00%
Percentage of co-investment	less than 100%	less than 100%
Number of limited partnership units exchanged		22,432
Description of conversion rate		One share of common stock to One unit or into cash
Common partnership units of operating partnership owned by REIT		99.55%
PEPR [Member]
Business Acquisition [Line Items]
Square footage of properties sold	4.2
Number of properties sold	18
Outstanding limited partnership units	2,058,730	2,058,730
Mexico Fondo Logistico [Member]
Business Acquisition [Line Items]
Proceeds from sale of property	234.4
U.S., Prologis North American Industrial Fund III [Member]
Business Acquisition [Line Items]
Proceeds from sale of property	$ 58.5
Square footage of properties sold	1.2
Number of properties sold	8