Unconsolidated Investees (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 sqft Property	Dec. 31, 2010
Information about investments in the property funds
Number of real estate properties	1,797	985
Investments in and advances to unconsolidated investees	$ 2,857,755	$ 2,024,661
Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	1,403
Square feet of the property	267,800,000
Investments in and advances to unconsolidated investees	2,471,179	1,890,016
Prologis California [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	80
Square feet of the property	14,200,000
Ownership percentage in property fund	50.00%	50.00%
Investments in and advances to unconsolidated investees	83,994	91,088
Prologis North American Properties Fund One [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	22
Square feet of the property	6,200,000
Ownership percentage in property fund	41.30%	41.30%
Investments in and advances to unconsolidated investees	33,194	40,572
Prologis North American Properties Fund Eleven [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	12
Square feet of the property	3,600,000
Ownership percentage in property fund	20.00%	20.00%
Investments in and advances to unconsolidated investees	29,868	30,274
Prologis North American Industrial Fund [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	254
Square feet of the property	48,900,000
Ownership percentage in property fund	23.10%	23.10%
Investments in and advances to unconsolidated investees	219,160	234,172
Prologis North American Industrial Fund II [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	137
Square feet of the property	34,200,000
Ownership percentage in property fund	37.00%	37.00%
Investments in and advances to unconsolidated investees	335,397	354,407
Prologis North American Industrial Fund III [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	119
Square feet of the property	24,700,000
Ownership percentage in property fund	20.00%	20.00%
Investments in and advances to unconsolidated investees	26,066	132,282
Prologis Targeted U.S. Logistics Fund [Member]
Information about investments in the property funds
Square feet of the property	4,200,000
Prologis Targeted U.S. Logistics Fund [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	345
Square feet of the property	41,900,000
Ownership percentage in property fund	27.50%	0.00%
Investments in and advances to unconsolidated investees	665,594
Prologis Mexico Industrial Fund [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	73
Square feet of the property	9,500,000
Ownership percentage in property fund	20.00%	20.00%
Investments in and advances to unconsolidated investees	52,243	53,574
Prologis SGP Mexico Fund [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	25
Square feet of the property	6,400,000
Ownership percentage in property fund	21.60%
Investments in and advances to unconsolidated investees	36,794
Prologis Brazil Logistics Partners Fund 1 [Member]
Information about investments in the property funds
Ownership percentage in property fund	50.00%
Prologis Brazil Logistics Partners Fund 1 [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	3
Square feet of the property	900,000
Ownership percentage in property fund	50.00%
Investments in and advances to unconsolidated investees	113,985
Prologis European Properties [Member] | Property Fund [Member]
Information about investments in the property funds
Ownership percentage in property fund		33.10%
Investments in and advances to unconsolidated investees		496,946
Prologis European Properties Fund II [Member]
Information about investments in the property funds
Square feet of the property	2,300,000
Prologis European Properties Fund II [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	217
Square feet of the property	54,800,000
Ownership percentage in property fund	29.70%	29.70%
Investments in and advances to unconsolidated investees	404,298	439,985
Prologis Targeted Europe Logistics Fund [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	75
Square feet of the property	11,900,000
Ownership percentage in property fund	31.50%
Investments in and advances to unconsolidated investees	245,859
Prologis Europe Logistics Venture One [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	2
Square feet of the property	400,000
Ownership percentage in property fund	15.00%
Investments in and advances to unconsolidated investees	11,853
Prologis Japan Fund 1 [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	27
Square feet of the property	7,300,000
Ownership percentage in property fund	20.00%
Investments in and advances to unconsolidated investees	180,999
Prologis China Logistics Venture [Member]
Information about investments in the property funds
Square feet of the property	600,000
Prologis China Logistics Venture [Member] | Property Fund [Member]
Information about investments in the property funds
Number of real estate properties	12
Square feet of the property	2,900,000
Ownership percentage in property fund	15.00%
Investments in and advances to unconsolidated investees	31,875
Prologis Korea Fund [Member] | Property Fund [Member]
Information about investments in the property funds
Ownership percentage in property fund		20.00%
Investments in and advances to unconsolidated investees		$ 16,716