Unconsolidated Entities - Summary of Operating Information and Financial Position of Unconsolidated Co-investment Ventures (Detail) $ in Thousands, ft² in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2018 USD ($) ft² Property Venture	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) ft² Property Venture	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) ft² Property Venture
Schedule Of Equity Method Investments [Line Items]
Number of buildings | Property		3		3
Our earnings from unconsolidated co-investment ventures, net		$ 62,549	$ 68,596	$ 125,205	$ 117,201
Unconsolidated Co-Investment Ventures [Member]
Schedule Of Equity Method Investments [Line Items]
Ventures | Venture		8		8		8
Number of buildings | Property		1,526		1,526		1,559
Square feet | ft²		327		327		332
Total assets		$ 29,131,000		$ 29,131,000		$ 28,899,000
Third-party debt		8,077,000		8,077,000		8,079,000
Total liabilities		9,665,000		9,665,000		9,642,000
Our investment balance	[1]	5,207,000		5,207,000		$ 5,275,000
Total revenues		609,000	508,000	1,226,000	1,008,000
Net earnings		159,000	223,000	321,000	373,000
Our earnings from unconsolidated co-investment ventures, net		$ 54,000	62,000	$ 109,000	107,000
Unconsolidated Co-Investment Ventures [Member] | U.S. [Member]
Schedule Of Equity Method Investments [Line Items]
Ventures | Venture		1		1		1
Number of buildings | Property		554		554		552
Square feet | ft²		88		88		88
Total assets		$ 7,188,000		$ 7,188,000		$ 7,062,000
Third-party debt		2,098,000		2,098,000		2,313,000
Total liabilities		2,307,000		2,307,000		2,520,000
Our investment balance	[1]	1,365,000		1,365,000		$ 1,383,000
Total revenues		168,000	105,000	336,000	209,000
Net earnings		24,000	15,000	37,000	51,000
Our earnings from unconsolidated co-investment ventures, net		$ 7,000	2,000	$ 12,000	7,000
Unconsolidated Co-Investment Ventures [Member] | Other Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Ventures | Venture		2		2		2
Number of buildings | Property		205		205		205
Square feet | ft²		37		37		37
Total assets		$ 2,073,000		$ 2,073,000		$ 2,118,000
Third-party debt		752,000		752,000		756,000
Total liabilities		788,000		788,000		782,000
Our investment balance	[1]	561,000		561,000		$ 555,000
Total revenues		55,000	66,000	108,000	130,000
Net earnings		19,000	22,000	33,000	39,000
Our earnings from unconsolidated co-investment ventures, net		$ 8,000	10,000	$ 14,000	16,000
Unconsolidated Co-Investment Ventures [Member] | Europe [Member]
Schedule Of Equity Method Investments [Line Items]
Ventures | Venture		3		3		3
Number of buildings | Property		653		653		707
Square feet | ft²		154		154		166
Total assets		$ 13,176,000		$ 13,176,000		$ 13,586,000
Third-party debt		2,650,000		2,650,000		2,682,000
Total liabilities		3,689,000		3,689,000		3,655,000
Our investment balance	[1]	2,699,000		2,699,000		$ 2,813,000
Total revenues		272,000	248,000	560,000	492,000
Net earnings		110,000	93,000	203,000	166,000
Our earnings from unconsolidated co-investment ventures, net		$ 37,000	36,000	$ 74,000	66,000
Unconsolidated Co-Investment Ventures [Member] | Asia [Member]
Schedule Of Equity Method Investments [Line Items]
Ventures | Venture		2		2		2
Number of buildings | Property		114		114		95
Square feet | ft²		48		48		41
Total assets		$ 6,694,000		$ 6,694,000		$ 6,133,000
Third-party debt		2,577,000		2,577,000		2,328,000
Total liabilities		2,881,000		2,881,000		2,685,000
Our investment balance	[1]	582,000		582,000		$ 524,000
Total revenues		114,000	89,000	222,000	177,000
Net earnings		6,000	93,000	48,000	117,000
Our earnings from unconsolidated co-investment ventures, net		$ 2,000	$ 14,000	$ 9,000	$ 18,000
Unconsolidated Co-Investment Ventures [Member] | Weighted Average [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[2]	28.20%		28.20%		28.80%
Unconsolidated Co-Investment Ventures [Member] | Weighted Average [Member] | U.S. [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[2]	26.70%		26.70%		28.20%
Unconsolidated Co-Investment Ventures [Member] | Weighted Average [Member] | Other Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[2]	43.80%		43.80%		43.40%
Unconsolidated Co-Investment Ventures [Member] | Weighted Average [Member] | Europe [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[2]	32.90%		32.90%		32.80%
Unconsolidated Co-Investment Ventures [Member] | Weighted Average [Member] | Asia [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[2]	15.10%		15.10%		15.10%

[1] Prologis’ investment balance is presented at our adjusted basis derived from the ventures’ U.S. GAAP information. The difference between our ownership interest of a venture’s equity and our investment balance at June 30, 2018 and December 31, 2017, results principally from three types of transactions: (i) deferred gains from the contribution of property to a venture prior to January 1, 2018 ($651.8 million and $667.3 million, respectively); (ii) recording additional costs associated with our investment in the venture ($92.4 million and $94.2 million, respectively); and (iii) advances to a venture ($219.9 million and $210.0 million, respectively). For deferred gains from partial sales recorded prior to the adoption the new revenue recognition standard, we will continue to recognize these gains over the lives of the underlying real estate properties or at the time of disposition to a third party.

[2] 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.