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Related Party Transactions - Summary of Related Party Costs (Parenthetical) (Detail) - Class T Common stock | 9 Months Ended | 12 Months Ended
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Sep. 30, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Related Party Transaction [Line Items] |  |  |
Monthly stockholder servicing fee accrual description | accrued daily in an amount equal to 1/365th of 1% of the purchase price per share | accrued daily in an amount equal to 1/365th of 1% of the purchase price per share | accrues daily in an amount equal to 1/365th of 1% of the purchase price per share
Dealer Manager |  |  |
Related Party Transaction [Line Items] |  |  |
Monthly stockholder servicing fee accrual description |  | accrues daily in an amount equal to 1/365th of 1% of the purchase price per share | accrues daily in an amount equal to 1/365th of 1% of the purchase price per share

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