Related-Party Transactions - Schedule of the Total Selling Commissions and Dealer-Manager Fees Paid (Details) - Selling Commissions and Dealer Management Fees - Gladstone Securities - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2024 |
Jun. 30, 2023 |
Jun. 30, 2024 |
Jun. 30, 2023 |
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| Related Party Transaction [Line Items] | ||||
| Total due to related parties | $ 2 | $ 183 | $ 30 | $ 332 |
| Series E Preferred Stock | Preferred Stock | ||||
| Related Party Transaction [Line Items] | ||||
| Total due to related parties | $ 2 | $ 183 | $ 30 | $ 332 |
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