Subsequent Events - Additional Information (Detail) - USD ($)				6 Months Ended
	Aug. 07, 2019	Aug. 05, 2019	Jul. 10, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 21, 2019
Subsequent Event [Line Items]
Acquisition fee as percentage of contract purchase price				2.00%
Gross proceeds from issuance of common stock				$ 3,030,455	$ 16,011,588
Courtyard Bridge Loans [Member]
Subsequent Event [Line Items]
Loan maturity date				Apr. 30, 2020
Second Amended and Restated DRP [Member]
Subsequent Event [Line Items]
Shares issuable pursuant to distribution reinvestment plan per share						$ 9.30
Subsequent Event [Member]
Subsequent Event [Line Items]
Gross proceeds from issuance of common stock		$ 100,000
Subsequent Event [Member] | Courtyard Bridge Loans [Member]
Subsequent Event [Line Items]
Loan maturity date	Apr. 30, 2020
Subsequent Event [Member] | Advisory Agreement [Member]
Subsequent Event [Line Items]
Percentage of cumulative non-compounded annual return on invested capital to shareholders distributions			6.00%
Acquisition fee as percentage of contract purchase price			1.00%
Disposition fees percentage of sale price of property			1.00%
Additional percentage of cumulative non-compounded annual return on invested capital to shareholders distributions			13.00%
Additional acquisition fees as percentage of contract purchase price			2.00%
Percentage of competitive real estate commission			50.00%
Subsequent Event [Member] | Primary Offering [Member]
Subsequent Event [Line Items]
Shares issuable pursuant to distribution reinvestment plan per share			$ 9.30
Maximum [Member] | Dealer Manager [Member]
Subsequent Event [Line Items]
Sale commission fees percentage of proceed from Primary Offering				6.00%
Maximum [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage of organization and offering expenses funded by our advisor			1.00%
Minimum [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage of organization and offering expenses funded by our advisor			1.00%
Class Y Common Stock [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Sale of shares of common stock		12,000
Class Y Common Stock [Member] | Subsequent Event [Member] | Dealer Manager [Member]
Subsequent Event [Line Items]
Sale commission fees percentage of proceed from Primary Offering			3.00%
Dealer manager fees percentage of proceed from sales in primary portion of offering			3.00%
Class Y Common Stock [Member] | Subsequent Event [Member] | Dealer Manager [Member] | Additional Paid In Capital Selling Commissions [Member]
Subsequent Event [Line Items]
Monthly stockholder servicing fee accrual description			accrue daily in an amount equal to 1/365th of 1.0% of the purchase price per share
Class Y Common Stock [Member] | Subsequent Event [Member] | Primary Offering [Member]
Subsequent Event [Line Items]
Estimation of organization and offering expenses for sale of stock			1.00%
Gross proceeds from issuance of common stock			$ 250,000,000
Class Y Common Stock [Member] | Maximum [Member]
Subsequent Event [Line Items]
Shares issuable pursuant to distribution reinvestment plan			700,000,000
Class Y Common Stock [Member] | Maximum [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Shares issuable pursuant to distribution reinvestment plan			$ 700,000,000
Class Z Common Stock [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Sale of shares of common stock		0
Class Z Common Stock [Member] | Subsequent Event [Member] | Dealer Manager [Member] | Additional Paid In Capital Selling Commissions [Member]
Subsequent Event [Line Items]
Monthly stockholder servicing fee accrual description			accrue daily in an amount equal to 1/365th of 0.5% of the purchase price per share
Class Z Common Stock [Member] | Subsequent Event [Member] | Primary Offering [Member]
Subsequent Event [Line Items]
Estimation of organization and offering expenses for sale of stock			1.00%
Class Z Common Stock [Member] | Maximum [Member]
Subsequent Event [Line Items]
Shares issuable pursuant to distribution reinvestment plan			$ 300,000,000
Class Z Common Stock [Member] | Maximum [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Shares issuable pursuant to distribution reinvestment plan			$ 300,000,000
Class A, T, W, Y and Z Common Stock [Member] | Primary and Public Offering [Member]
Subsequent Event [Line Items]
Shares issuable pursuant to distribution reinvestment plan per share			$ 9.30
Class A, T, W, Y and Z Common Stock [Member] | Subsequent Event [Member] | Primary and Public Offering [Member]
Subsequent Event [Line Items]
Shares issuable pursuant to distribution reinvestment plan per share			$ 9.30