Organization (Public Offering) (Details) shares in Millions, ft² in Millions		9 Months Ended
	Nov. 13, 2020 USD ($) shares	Sep. 30, 2020 USD ($) ft² Property	Sep. 30, 2019 USD ($)	Dec. 06, 2017 USD ($)	Aug. 20, 2014 USD ($)
Subsidiary, Sale of Stock [Line Items]
Number of real estate properties | Property		20
Area of real estate property (square feet) | ft²		9.5
Real estate portfolio, percentage leased		94.00%
Proceeds from issuance of common shares		$ 178,433,000	$ 296,944,000
Initial Offering
Subsidiary, Sale of Stock [Line Items]
Maximum proceeds from issuance of IPO					$ 2,500,000,000
Second Offering
Subsidiary, Sale of Stock [Line Items]
Maximum proceeds from issuance of IPO				$ 2,500,000,000
Second Offering | Dividend Reinvestment Plan
Subsidiary, Sale of Stock [Line Items]
Maximum proceeds from issuance of IPO				$ 500,000,000.0
First and Second Offerings | First and Second Offerings | Subsequent Event
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of common shares	$ 1,100,000,000
Issuance of common shares, shares (in shares) | shares	110.4
Hines Global REIT II Associates LP | Ownership Partnership
Subsidiary, Sale of Stock [Line Items]
Ownership interest percentage (less than)		1.00%