Related Party Transactions - Schedule of Fees Waived or Expense Supported by the Advisor and Reimbursements to the Advisor by the Company (Footnote Information) (Detail)	Jun. 30, 2017 USD ($)
Advisor \| Expense Support Agreement
Related Party Transaction [Line Items]
Expense support payable to the company by the Advisor	$ 221,755

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration