Principal Business and Organization - Additional Information (Detail)			12 Months Ended	35 Months Ended
	Nov. 01, 2021 USD ($)	Mar. 07, 2018 USD ($)	Dec. 31, 2021 USD ($) portfolioCompany	Dec. 31, 2020 offering
Organization And Business Activities [Line Items]
Number classes of shares | portfolioCompany			4
Private Placement
Organization And Business Activities [Line Items]
Number of Offerings | offering				4
Initial Public Offering, Including Distribution Reinvestment Plan
Organization And Business Activities [Line Items]
Shares authorized for sale		$ 1,100,000,000
Distribution Reinvestment Plan
Organization And Business Activities [Line Items]
Shares authorized for sale	$ 100,000,000	$ 100,000,000
Follow On Public Offering, Including Distribution Reinvestment Plan
Organization And Business Activities [Line Items]
Shares authorized for sale	$ 1,100,000,000
Minimum
Organization And Business Activities [Line Items]
Targeted business annual revenues for acquisition			$ 15,000,000
Maximum
Organization And Business Activities [Line Items]
Targeted business annual revenues for acquisition			$ 250,000,000