v2.4.0.6

Noncontrolling Interests (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended			6 Months Ended			6 Months Ended				6 Months Ended
	Mar. 31, 2012	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2012 Prologis Institutional Alliance Fund II [Member]	Jun. 30, 2012 PEPR [Member] sqft Property	Jun. 30, 2011 PEPR [Member]	Jun. 30, 2012 PEPR [Member] Prologis Institutional Alliance Fund II [Member]	Jun. 30, 2012 Mexico Fondo Logistico [Member] Property sqft	Jun. 30, 2012 Prologis AMS [Member]	Jun. 30, 2012 Operating Partnership [Member]	Dec. 31, 2011 Operating Partnership [Member]	Jun. 30, 2012 Prologis Institution Alliance Fund II [Member]
Business Acquisition [Line Items]
Common partnership units of operating partnership owned by REIT		99.59%			99.59%
Number of properties sold					18			4
Square footage of properties sold					3,670.0			0.8
Proceeds from sale of property					$ 342.3			$ 40.6
Outstanding limited partnership units		1,285,312	1,302,238							1,902,108	2,058,730
Limited partnership units converted in to cash	16,926					156,622
Purchase Accounting Adjustments		32.9							22.7
Debt paid					263.9
Our Ownership Percentage				28.20%			99.50%
Payments to Acquire Additional Interest in Subsidiaries								15.7				14.1
Noncontrolling Interests (Textual) [Abstract]
Percentage of common equity not owned		100.00%
Description of conversion rate		One share of common stock to One unit
Percentage of co-investment		less than 100%
Partnership units exchanged for cash amount		$ 5.5

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Description of conversion rate.

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Number of properties sold.

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Percentage of co-investment.

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Percentage of common equity not owned.

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Percentage of ownership in general partnership.

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Square footage of properties sold

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Purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

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The cash outflow associated with the purchase of noncontrolling interest during the period.

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The cash inflow from the sale of formerly productive land held for sale, anything permanently fixed to it, including buildings, structures on it, and so forth.

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The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Payments for Advances from Affiliates.

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