Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Significant Accounting Policies [Line Items]
Restricted cash	$ 900	$ 0
Income tax provision	$ 0
Class T Shares (Member)
Significant Accounting Policies [Line Items]
Annual stockholder servicing fee percentage	0.85%
Class T Shares (Member) | Maximum
Significant Accounting Policies [Line Items]
Upfront selling commissions and dealer manager fee percentage	3.50%
Class S Shares (Member)
Significant Accounting Policies [Line Items]
Annual stockholder servicing fee percentage	0.85%
Class S Shares (Member) | Maximum
Significant Accounting Policies [Line Items]
Upfront selling commissions and dealer manager fee percentage	3.50%
Class D Shares (Member)
Significant Accounting Policies [Line Items]
Annual stockholder servicing fee percentage	0.25%
Common Stock Class T, Class S and Class D | Due to Affiliates
Significant Accounting Policies [Line Items]
Stockholder servicing fees accrued	$ 10,800
Advisor
Significant Accounting Policies [Line Items]
Period to reimburse the advisor for all organization and offering expenses	60 months	60 months
Inception to date organization and offering expenses	$ 5,800
Offering costs	4,400
Organization costs	$ 1,400
Advisor | Class T Shares (Member)
Significant Accounting Policies [Line Items]
Advisor Percentage of stockholder servicing fee on NAV per annum	0.65%
Dealer Manager
Significant Accounting Policies [Line Items]
Annual stockholder servicing fee percentage of gross proceeds limit	8.75%
Dealer Manager | Class T Shares (Member)
Significant Accounting Policies [Line Items]
Annual stockholder servicing fee percentage	0.85%
Upfront dealer manager fee percentage	0.50%
Dealer stockholder servicing fee percentage	0.20%
Dealer Manager | Class T Shares (Member) | Maximum
Significant Accounting Policies [Line Items]
Upfront selling commissions percentage	3.00%
Upfront selling commissions and dealer manager fee percentage	3.50%
Dealer Manager | Class S Shares (Member)
Significant Accounting Policies [Line Items]
Annual stockholder servicing fee percentage	0.85%
Dealer Manager | Class S Shares (Member) | Maximum
Significant Accounting Policies [Line Items]
Upfront selling commissions percentage	3.50%
Dealer Manager | Class D Shares (Member)
Significant Accounting Policies [Line Items]
Annual stockholder servicing fee percentage	0.25%
Dealer Manager | Class I Shares (Member)
Significant Accounting Policies [Line Items]
Annual stockholder servicing fee percentage	0.00%