Impairment Charges - Additional Information (Detail) (USD $)	12 Months Ended					12 Months Ended	3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended
	Dec. 31, 2012 Unconsolidated_Investees	Dec. 31, 2011 Parcels	Dec. 31, 2010	Jun. 30, 2011	Dec. 31, 2012 Prologis North American Industrial Fund [Member] Unconsolidated_Investees	Dec. 31, 2011 Continuing Operations [Member]	Dec. 31, 2011 Notes Receivable [Member] Discontinued Operations [Member]	Dec. 31, 2012 Prologis European Logistics Partners ("PELP") [Member]	Dec. 31, 2010 North America [Member]	Dec. 31, 2010 Europe [Member]	Mar. 31, 2012 Land Parcels [Member]	Dec. 31, 2012 Land Parcels [Member]	Dec. 31, 2010 Operating Properties [Member]	Dec. 31, 2012 Operating Properties [Member] Discontinued Operations [Member]	Dec. 31, 2010 Operating Properties [Member] Discontinued Operations [Member]	Dec. 31, 2012 Operating Properties [Member] Continuing Operations [Member]	Dec. 31, 2011 Operating Properties [Member] South Korea [Member]	Dec. 31, 2011 Operating Properties [Member] South Korea [Member] Discontinued Operations [Member]	Dec. 31, 2012 Land Parcels [Member]	Dec. 31, 2010 Land Parcels [Member]
Interest Cost Capitalized And Depreciation And Amortization Expenses For Property, Plant and Equipment [Line Items]
Assets held for sale impairment charge												$ 77,500,000		$ 30,600,000	$ 77,400,000			$ 2,700,000	$ 11,400,000	$ 687,600,000
Impairment of Real Estate Properties													47,100,000				10,300,000
Impairment of real estate properties	252,914,000	21,237,000	736,612,000					135,300,000
Impairment charges						21,200,000	20,500,000						168,800,000			28,700,000
Impairment of goodwill and other assets													44,300,000
Impairment of goodwill			368,451,000						235,500,000	132,900,000
Impairment charges of other assets				103,800,000
Number of unconsolidated investees	2				1
Number of land parcels exchanged		3
Additional impairment charge											16,100,000
Impairment of investments in joint ventures			41,400,000
Impairment of note receivable			$ 2,900,000