Principal Business and Organization - Additional Information (Detail) - USD ($)		1 Months Ended		11 Months Ended	12 Months Ended
	Feb. 07, 2018	Jul. 31, 2019	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2019	Jan. 31, 2020	Apr. 30, 2019
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)							4,000,000
Class FA
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)				3,400,000	7,400,000		7,400,000
Class FA | Private Placement
Organization And Business Activities [Line Items]
Minimum offering requirement in 2018 Private Offering	$ 80,000,000
Shares (in shares)	3,300,000			3,258,260
Gross proceeds from issuance of shares	$ 81,700,000			$ 81,456,500
Class FA | 2019 Private Offering [Member]
Organization And Business Activities [Line Items]
Number of shares offered in 2019 Private Offering		50,000,000
Shares (in shares)					1,000,000
Sale of stock offering, minimum requirement			$ 2,000,000
Class FA | Follow On Private Placement [Member]
Organization And Business Activities [Line Items]
Share price (usd per share)					$ 30.0327868852459
Class A
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)				94,660,000	94,660,000		94,660,000
Class T
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)				662,620,000	658,620,000		658,620,000
Class D
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)				94,660,000	94,660,000		94,660,000
Class I
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)				94,660,000	94,660,000		94,660,000
Minimum
Organization And Business Activities [Line Items]
Targeted business annual revenues for acquisition					$ 25,000,000
Maximum
Organization And Business Activities [Line Items]
Targeted business annual revenues for acquisition					$ 250,000,000
Subsequent Event [Member]
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)						100,000,000
Subsequent Event [Member] | Class FA
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)						7,400,000
Subsequent Event [Member] | Class A
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)						94,660,000
Subsequent Event [Member] | Class T
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)						558,620,000
Subsequent Event [Member] | Class D
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)						94,660,000
Subsequent Event [Member] | Class I
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)						94,660,000
Subsequent Event [Member] | Common Class S- [Member]
Organization And Business Activities [Line Items]
Common stock, shares authorized (in shares)						100,000,000