Related Party Transactions - Additional Information (Detail) - USD ($)		3 Months Ended	11 Months Ended	12 Months Ended
	Feb. 07, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2019
Related Party Transaction [Line Items]
Restricted Cash				$ 10,000,000
Distributions paid			$ 3,060,280	4,811,127
Expense support			(389,774)	(1,372,020)
Due to related parties			$ 1,172,056	1,093,456
High water mark			$ 24.75
Organization and offering expenses
Related Party Transaction [Line Items]
Due to related parties			$ 66,894	56,888
Base management fees
Related Party Transaction [Line Items]
Due to related parties			78,967	$ 165,338
Manager Sub Manager
Related Party Transaction [Line Items]
Expense support			400,000
Percentage of return incentive fees payable				50.00%
Base management fees multiplier for non founder shares				2.00%
Base management fees multiplier for founder shares				1.00%
Annual preference return				7.00%
Annual preference return relates to non-founder shares				8.75%
Annual preference return relates to founder shares				7.777%
Total return incentive fee
Related Party Transaction [Line Items]
Due to related parties			$ 1,015,228	$ 847,863
Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Related Party Transaction [Line Items]
Shares (in shares)			3,850,671
Managing and Sub Manager
Related Party Transaction [Line Items]
Distributions paid			$ 600,000	700,000
Organization and offering costs incurred				$ 5,400,000
Annual preference return relates to non-founder shares				8.75%
Annual preference return relates to founder shares				7.777%
Managing and Sub Manager | Organization and offering expenses
Related Party Transaction [Line Items]
Related party fees and expenses			948,032	$ 654,803
Managing and Sub Manager | Base management fees
Related Party Transaction [Line Items]
Related party fees and expenses			722,233	1,327,920
Managing and Sub Manager | Expense Support Provided Expense Support and Conditional Reimbursement Agreement [Member]
Related Party Transaction [Line Items]
Related party fees and expenses			(389,774)	(1,372,020)
Managing and Sub Manager | Return incentive fees
Related Party Transaction [Line Items]
Related party fees and expenses			$ 1,015,228	$ 847,863
Managing and Sub Manager | Minimum
Related Party Transaction [Line Items]
Annual preference return				7.00%
Managing and Sub Manager | Private Placement
Related Party Transaction [Line Items]
Maximum percentage of reimbursement from private placement				1.00%
Managing and Sub Manager | Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Related Party Transaction [Line Items]
Maximum percentage of reimbursement from private placement				1.50%
Sub Manager [Member] | Reimbursement of Third Party Pursuit Costs [Member]
Related Party Transaction [Line Items]
Related party fees and expenses				$ 100,000
Class FA
Related Party Transaction [Line Items]
High water mark				$ 26.65
Class FA | Private Placement
Related Party Transaction [Line Items]
Shares (in shares)	3,300,000		3,258,260
Minimum offering requirement in 2018 Private Offering	$ 80,000,000
Gross proceeds from issuance of shares	81,700,000		$ 81,456,500
Proceed from cash capital contribution	400,000
Class FA | Follow On Private Placement [Member]
Related Party Transaction [Line Items]
Selling Commission on Share Sold Percentage				5.50%
Placement Agent Fee on Share Sold Percentage				3.00%
Class FA | 2019 Private Offering [Member]
Related Party Transaction [Line Items]
Shares (in shares)				1,000,000
Class FA | Manager
Related Party Transaction [Line Items]
Proceed from cash capital contribution	$ 2,400,000
Share issued	96,000
Class FA | Board of Directors Chairman
Related Party Transaction [Line Items]
Proceed from cash capital contribution	$ 9,500,000
Share issued	380,000
Class FA | Other Individuals
Related Party Transaction [Line Items]
Share issued	15,000
Class A
Related Party Transaction [Line Items]
High water mark				$ 26.44
Class A | Managing Dealer [Member]
Related Party Transaction [Line Items]
Selling Commission on Share Sold Percentage				6.00%
Class A | Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Related Party Transaction [Line Items]
Shares (in shares)			190,046	463,565
Gross proceeds from issuance of shares			$ 5,435,093	$ 13,294,279
Dealer manager fee				2.50%
Class T
Related Party Transaction [Line Items]
High water mark				$ 26.54
Class T | Managing Dealer [Member]
Related Party Transaction [Line Items]
Selling Commission on Share Sold Percentage				3.00%
Class T | Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Related Party Transaction [Line Items]
Shares (in shares)			31,432	166,277
Gross proceeds from issuance of shares			$ 861,000	$ 4,675,452
Dealer manager fee				1.75%
Annual distribution and fee, percentage				1.00%
Class D
Related Party Transaction [Line Items]
High water mark				$ 26.23
Class D | Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Related Party Transaction [Line Items]
Shares (in shares)			121,797	176,604
Gross proceeds from issuance of shares			$ 3,160,000	$ 4,655,674
Annual distribution and fee, percentage				0.50%
Class I
Related Party Transaction [Line Items]
High water mark				$ 26.55
Class I | Class FA Private Offering, Follow-On Class FA Private Offering and Public Offering
Related Party Transaction [Line Items]
Shares (in shares)			249,136	679,491
Gross proceeds from issuance of shares			$ 6,492,500	$ 18,173,050
Annual Preference Return Less than or Equal to 8.75% or the Non-founder breakpoint | Manager Sub Manager
Related Party Transaction [Line Items]
Percentage of return incentive fees payable				20.00%
Annual Preference Return Less Than 7.777% or Founder breakpoint | Manager Sub Manager
Related Party Transaction [Line Items]
Percentage of return incentive fees payable				10.00%