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Related Party Transactions - Summary of Related Party Carrying Value of Investments In Advances (Parenthetical) (Detail) - USD ($) |  |  | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 26, 2023 | May 02, 2023 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 13, 2023 | Dec. 31, 2022 | Oct. 07, 2021
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Principal borrowing amount |  |  |  |  |  |  | $ 700,000,000
Outstanding principal, plus accrued interest |  |  | $ 12,016,875 | $ 86,237,235 |  |  |
SST VI |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Principal borrowing amount |  |  |  |  | $ 15,000,000.0 |  |
Outstanding principal, plus accrued interest |  | $ 51,700,000 |  |  |  |  |
SSGT III Mezzanine Loan |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Principal borrowing amount |  |  | $ 9,500,000 |  |  | $ 17,500,000 |
SSGT III | Subsequent Event |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Outstanding principal, plus accrued interest | $ 3,000,000.0 |  |  |  |  |  |

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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 + Details
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