Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Period advisor agreed to waive management fee post escrow break	3 months
Due to affiliates	$ 16,754	$ 0
Accrued Stockholder Servicing Fee
Related Party Transaction [Line Items]
Due to affiliates	10,830	0
Advanced Organization And Offering Costs
Related Party Transaction [Line Items]
Due to affiliates	5,822	0
Advanced Expenses
Related Party Transaction [Line Items]
Due to affiliates	$ 102	0
Class T Shares (Member)
Related Party Transaction [Line Items]
Annual stockholder servicing fee percentage	0.85%
Class S Shares (Member)
Related Party Transaction [Line Items]
Annual stockholder servicing fee percentage	0.85%
Class D Shares (Member)
Related Party Transaction [Line Items]
Annual stockholder servicing fee percentage	0.25%
Advisor
Related Party Transaction [Line Items]
Percentage of management fee on NAV per annum	1.25%
Advisor | Advanced Organization And Offering Costs
Related Party Transaction [Line Items]
Due to affiliates	$ 5,800
Advisor | Advanced Expenses
Related Party Transaction [Line Items]
Due to affiliates	$ 102	$ 0
Special Limited Partner
Related Party Transaction [Line Items]
Annual hurdle percentage	5.00%
Performance participation distribution percentage	12.50%
Dealer Manager
Related Party Transaction [Line Items]
Annual stockholder servicing fee percentage of gross proceeds limit	8.75%
Annual stockholder servicing fee percentage of gross proceeds limit (all sources)	10.00%
Dealer Manager | Class T Shares (Member)
Related Party Transaction [Line Items]
Dealer manager fee percentage	0.50%
Annual stockholder servicing fee percentage	0.85%
Dealer Manager | Class T Shares (Member) | Maximum
Related Party Transaction [Line Items]
Selling commissions percentage	3.00%
Dealer Manager | Class S Shares (Member)
Related Party Transaction [Line Items]
Annual stockholder servicing fee percentage	0.85%
Dealer Manager | Class S Shares (Member) | Maximum
Related Party Transaction [Line Items]
Selling commissions percentage	3.50%
Dealer Manager | Class D Shares (Member)
Related Party Transaction [Line Items]
Annual stockholder servicing fee percentage	0.25%
Dealer Manager | Common Stock Class T, Class S and Class D | Accrued Stockholder Servicing Fee
Related Party Transaction [Line Items]
Due to affiliates	$ 10,800