Capital Transactions - Summary of Shares Issued and Proceeds Received in Connection with Private Placement (Detail) - USD ($)		11 Months Ended	12 Months Ended
Feb. 07, 2018	Dec. 31, 2018	Dec. 31, 2019
Investment Company, Capital Share Transactions [Line Items]
Distributions reinvested, proceeds to company		$ 99,836	$ 799,107
Shares Issued, Including Reinvestments		3,854,515	2,524,449
Net Proceeds to Company			$ 67,991,333
Average Net Proceeds per Share		$ 25.17	$ 26.93
Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Investment Company, Capital Share Transactions [Line Items]
Shares Issued		3,850,671
Public Offering and Private Placement
Investment Company, Capital Share Transactions [Line Items]
Shares Issued		3,850,671	2,494,425
Gross Proceeds		$ 97,405,093
Up-front Selling Commissions and Dealer Manager Fees		(471,850)
Net Proceeds to Company		96,933,243
Net Proceeds to Company		$ 97,033,079
Distribution Reinvestment Plan [Member]
Investment Company, Capital Share Transactions [Line Items]
Stock Issued During Period, Shares, Dividend Reinvestment Plan		3,844	30,024
Distributions reinvested, proceeds to company		$ 99,836	$ 799,107
Class FA
Investment Company, Capital Share Transactions [Line Items]
Shares Issued, Including Reinvestments		3,258,260	1,008,488
Net Proceeds to Company		$ 81,456,500	$ 27,586,447
Average Net Proceeds per Share		$ 25.00	$ 27.35
Class FA \| 2019 Private Offering [Member]
Investment Company, Capital Share Transactions [Line Items]
Shares Issued			1,000,000
Class FA \| Private Placement
Investment Company, Capital Share Transactions [Line Items]
Shares Issued	3,300,000	3,258,260
Gross Proceeds	$ 81,700,000	$ 81,456,500
Up-front Selling Commissions and Dealer Manager Fees		0
Net Proceeds to Company		$ 81,456,500
Class FA \| Distribution Reinvestment Plan [Member]
Investment Company, Capital Share Transactions [Line Items]
Stock Issued During Period, Shares, Dividend Reinvestment Plan		0	0
Distributions reinvested, proceeds to company		$ 0	$ 0
Class A
Investment Company, Capital Share Transactions [Line Items]
Shares Issued, Including Reinvestments		192,388	477,054
Net Proceeds to Company		$ 5,064,779	$ 12,682,767
Average Net Proceeds per Share		$ 26.33	$ 26.59
Class A \| Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Investment Company, Capital Share Transactions [Line Items]
Shares Issued		190,046	463,565
Gross Proceeds		$ 5,435,093	$ 13,294,279
Up-front Selling Commissions and Dealer Manager Fees		(430,953)	(970,592)
Net Proceeds to Company		$ 5,004,140	$ 12,323,687
Class A \| Distribution Reinvestment Plan [Member]
Investment Company, Capital Share Transactions [Line Items]
Stock Issued During Period, Shares, Dividend Reinvestment Plan		2,342	13,489
Distributions reinvested, proceeds to company		$ 60,639	$ 359,080
Class T
Investment Company, Capital Share Transactions [Line Items]
Shares Issued, Including Reinvestments		31,452	167,210
Net Proceeds to Company		$ 820,613	$ 4,478,330
Average Net Proceeds per Share		$ 26.09	$ 26.78
Class T \| Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Investment Company, Capital Share Transactions [Line Items]
Shares Issued		31,432	166,277
Gross Proceeds		$ 861,000	$ 4,675,452
Up-front Selling Commissions and Dealer Manager Fees		(40,897)	(222,084)
Net Proceeds to Company		$ 820,103	$ 4,453,368
Class T \| Distribution Reinvestment Plan [Member]
Investment Company, Capital Share Transactions [Line Items]
Stock Issued During Period, Shares, Dividend Reinvestment Plan		20	933
Distributions reinvested, proceeds to company		$ 510	$ 24,962
Class D
Investment Company, Capital Share Transactions [Line Items]
Shares Issued, Including Reinvestments		122,889	182,928
Net Proceeds to Company		$ 3,188,533	$ 4,822,008
Average Net Proceeds per Share		$ 25.95	$ 26.36
Class D \| Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Investment Company, Capital Share Transactions [Line Items]
Shares Issued		121,797	176,604
Gross Proceeds		$ 3,160,000	$ 4,655,674
Up-front Selling Commissions and Dealer Manager Fees		0	0
Net Proceeds to Company		$ 3,160,000	$ 4,655,674
Class D \| Distribution Reinvestment Plan [Member]
Investment Company, Capital Share Transactions [Line Items]
Stock Issued During Period, Shares, Dividend Reinvestment Plan		1,092	6,324
Distributions reinvested, proceeds to company		$ 28,533	$ 166,334
Class I
Investment Company, Capital Share Transactions [Line Items]
Shares Issued, Including Reinvestments		249,526	688,769
Net Proceeds to Company		$ 6,502,654	$ 18,421,781
Average Net Proceeds per Share		$ 26.06	$ 26.75
Class I \| Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Investment Company, Capital Share Transactions [Line Items]
Shares Issued		249,136	679,491
Gross Proceeds		$ 6,492,500	$ 18,173,050
Up-front Selling Commissions and Dealer Manager Fees		0	0
Net Proceeds to Company		$ 6,492,500	$ 18,173,050
Class I \| Distribution Reinvestment Plan [Member]
Investment Company, Capital Share Transactions [Line Items]
Stock Issued During Period, Shares, Dividend Reinvestment Plan		390	9,278
Distributions reinvested, proceeds to company		$ 10,154	$ 248,731

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