Assets Held for Sale or Contribution - Summary of Assets Held for Sale or Contribution (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2018		Dec. 31, 2017
Long Lived Assets Held For Sale [Line Items]
Assets held for sale or contribution	$ 761,575	[1]	$ 342,060
Prologis and Consolidated Co-Investment Venture [Member]
Long Lived Assets Held For Sale [Line Items]
Assets held for sale or contribution	$ 412,200

[1] In October 2018, we and certain co-investment ventures sold a portfolio of operating buildings and land in Europe and the U.S. in a single transaction. Included in Assets Held for Sale Or Contribution is $412.2 million of properties owned by Prologis and our consolidated co-investment venture at September 30, 2018.