Unconsolidated Entities - Additional Information (Detail) - Prologis Inc [Member] $ in Millions	3 Months Ended
Mar. 31, 2019 USD ($)
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 283.2
Expiration date for remaining commitments range start	2020
Expiration date for remaining commitments range end	2026

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration