Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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- Definition

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Unconsolidated Entities - Information About Investments in Co-investment Ventures by Property Funds (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Oct. 31, 2017	Dec. 31, 2016
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Investment in and Advances to unconsolidated investees	$ 5,496,450		$ 4,230,429
Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Investment in and Advances to unconsolidated investees	$ 5,274,702		$ 4,057,524
Prologis Targeted U S Logistics Fund [Member] \| Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund	28.20%		14.90%
Investment in and Advances to unconsolidated investees	$ 1,383,021		$ 434,818
FIBRA Prologis [Member] \| Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund	46.30%		45.90%
Investment in and Advances to unconsolidated investees	$ 533,941		$ 547,744
Prologis Europe Logistics Fund FCP-FIS [Member] \| Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund	0.00%		23.50%
Investment in and Advances to unconsolidated investees	$ 0		$ 310,118
Prologis European Logistics Fund [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund		25.60%
Prologis European Logistics Fund [Member] \| Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund	26.30%		31.20%
Investment in and Advances to unconsolidated investees	$ 1,017,361		$ 344,200
Europe Logistics Venture 1 [Member] \| Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund	0.00%		15.00%
Investment in and Advances to unconsolidated investees	$ 0		$ 48,289
Prologis European Logistics Partners [Member] \| Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund	50.00%		50.00%
Investment in and Advances to unconsolidated investees	$ 1,766,075		$ 1,623,707
Nippon Prologis REIT Inc [Member] \| Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund	15.10%		15.10%
Investment in and Advances to unconsolidated investees	$ 406,568		$ 348,570
Prologis UK Logistics Venture [Member] \| Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund	15.00%		0.00%
Investment in and Advances to unconsolidated investees	$ 29,382		$ 0
Prologis China Logistics Venture [Member] \| Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund	15.00%		15.00%
Investment in and Advances to unconsolidated investees	$ 116,890		$ 102,778
Prologis Brazil Logistics Partners Fund I [Member] \| Unconsolidated Co-Investment Ventures [Member]
Schedule of Variable Interest Entities for Loans to Commercial Borrowers [Line Items]
Ownership Percentage in property fund	10.00%		0.00%
Investment in and Advances to unconsolidated investees	$ 21,464		$ 297,300