Real Estate - Summary of Acquisition (Detail) ft² in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2019 USD ($) ft² Property	Mar. 31, 2018 USD ($) ft² Property
Real Estate [Abstract]
Number of operating properties \| Property	12	0
Square feet \| ft²	967	0
Acquisition value of net investments in real estate properties \| $	$ 312,252	$ 134,941

Real estate acquisition value acquired during period.

No definition available.

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Namespace Prefix:	pld_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration