Unconsolidated Entities - Summary of Unconsolidated Co-investment Ventures (Detail) - Unconsolidated Co-Investment Ventures [Member] $ in Thousands, ft² in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2016 USD ($) ft² Property Venture	Jun. 30, 2015 USD ($) ft² Property Venture	Jun. 30, 2016 USD ($) ft² Property Venture	Jun. 30, 2015 USD ($) ft² Property Venture	Dec. 31, 2015 USD ($) ft² Property Venture
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		9	9	9	9	9
Number of properties owned | Property		1,355	1,325	1,355	1,325	1,350
Square feet | ft²		284	271	284	271	277
Total assets		$ 23,456,000	$ 22,544,000	$ 23,456,000	$ 22,544,000	$ 22,553,000
Third-party debt		6,620,000	6,315,000	6,620,000	6,315,000	6,250,000
Total liabilities		8,047,000	7,643,000	8,047,000	7,643,000	7,593,000
Our investment balance	[1]	4,328,000	4,727,000	4,328,000	4,727,000	$ 4,585,000
Revenues		491,354	453,243	965,898	905,888
Net operating income	[2]	380,645	351,228	746,013	697,377
Net earnings		$ 115,076	$ 117,859	$ 254,457	$ 208,108
U.S. [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		1	1	1	1	1
Number of properties owned | Property		379	399	379	399	391
Square feet | ft²		49	51	49	51	50
Total assets		$ 4,228,000	$ 4,405,000	$ 4,228,000	$ 4,405,000	$ 4,408,000
Third-party debt		1,425,000	1,509,000	1,425,000	1,509,000	1,433,000
Total liabilities		1,504,000	1,589,000	1,504,000	1,589,000	1,550,000
Our investment balance	[1],[3]	518,000	697,000	518,000	697,000	$ 690,000
Revenues		98,009	93,825	195,970	187,370
Net operating income	[2]	69,848	66,179	138,142	130,150
Net earnings		$ 5,285	$ 3,771	$ 35,860	$ 5,803
Other Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		2	2	2	2	2
Number of properties owned | Property		209	201	209	201	205
Square feet | ft²		41	38	41	38	39
Total assets		$ 2,694,000	$ 2,509,000	$ 2,694,000	$ 2,509,000	$ 2,482,000
Third-party debt		677,000	572,000	677,000	572,000	657,000
Total liabilities		772,000	624,000	772,000	624,000	708,000
Our investment balance	[1]	848,000	827,000	848,000	827,000	$ 786,000
Revenues		59,669	61,013	116,083	117,482
Net operating income	[2]	51,018	51,208	99,851	99,320
Net earnings		$ 19,451	$ 24,374	$ 33,349	$ 38,242
Europe [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		4	4	4	4	4
Number of properties owned | Property		690	669	690	669	688
Square feet | ft²		160	155	160	155	159
Total assets		$ 11,188,000	$ 11,427,000	$ 11,188,000	$ 11,427,000	$ 11,343,000
Third-party debt		2,566,000	2,533,000	2,566,000	2,533,000	2,640,000
Total liabilities		3,521,000	3,484,000	3,521,000	3,484,000	3,584,000
Our investment balance	[1],[3]	2,464,000	2,844,000	2,464,000	2,844,000	$ 2,707,000
Revenues		247,264	230,145	491,583	464,858
Net operating income	[2]	192,696	181,094	381,673	361,926
Net earnings		$ 68,567	$ 67,484	$ 141,399	$ 118,443
Asia [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		2	2	2	2	2
Number of properties owned | Property		77	56	77	56	66
Square feet | ft²		34	27	34	27	29
Total assets		$ 5,346,000	$ 4,203,000	$ 5,346,000	$ 4,203,000	$ 4,320,000
Third-party debt		1,952,000	1,701,000	1,952,000	1,701,000	1,520,000
Total liabilities		2,250,000	1,946,000	2,250,000	1,946,000	1,751,000
Our investment balance	[1]	498,000	359,000	498,000	359,000	$ 402,000
Revenues		86,412	68,260	162,262	136,178
Net operating income	[2]	67,083	52,747	126,347	105,981
Net earnings		$ 21,773	$ 22,230	$ 43,849	$ 45,620
Weighted Average [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[4]	28.80%	32.00%	28.80%	32.00%	31.60%
Weighted Average [Member] | U.S. [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3],[4]	17.60%	23.10%	17.60%	23.10%	22.50%
Weighted Average [Member] | Other Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[4]	43.60%	43.20%	43.60%	43.20%	43.80%
Weighted Average [Member] | Europe [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3],[4]	36.20%	39.40%	36.20%	39.40%	38.90%
Weighted Average [Member] | Asia [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[4]	15.00%	15.00%	15.00%	15.00%	15.00%

[1] The difference between our ownership interest of a venture’s equity and our investment balance, at June 30, 2016 and December 31, 2015, results principally from three types of transactions: (i) deferring a portion of the gains we recognize from a contribution of a property to a venture ($429.7 million and $430.7 million, respectively); (ii) recording additional costs associated with our investment in a venture ($123.9 million and $122.1 million, respectively); and (iii) advances to a venture ($165.2 million and $189.7 million, respectively). Included in the advances to our ventures at June 30, 2016 and December 31, 2015 were receivables from Nippon Prologis REIT, Inc. (“NPR”) of $109.5 million and $85.2 million, respectively, related to customer security deposits that originated through a leasing company owned by us that pertain to properties owned by NPR. We have a corresponding payable to NPR’s customers in Other Liabilities.

[2] Net operating income represents rental revenues less rental expenses.

[3] In April 2016, we redeemed a portion of our investment in Prologis Targeted European Logistics Fund (“PTELF”) and Prologis Targeted U.S. Logistics Fund (“USLF”) for €185.0 million ($210.6 million) and $200.0 million, respectively, and recorded a gain of $86.6 million, which is included in Gains on the Dispositions of Investments in Real Estate, Net. The amounts received for the redemptions were included in Return of Investment from Unconsolidated Entities. Also in April 2016, PTELF received an additional €120.0 million ($135.0 million) from third-party investors. As a result of these transactions, our ownership percentage in these funds decreased to 27.9% and 17.6% in PTELF and USLF, respectively.

[4] Represents our weighted average ownership interest in all co-investment ventures based on each entity’s contribution of total assets, before depreciation, net of other liabilities.