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Related-Party Transactions - Additional Information (Detail) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Feb. 20, 2020 | Dec. 31, 2021 USD ($) officer | Dec. 31, 2020 USD ($)
Related Party Transaction [Line Items] |  |  |
Number of executive officers that serve as directors | officer |  | 2 |
Hurdle rate, quarterly |  | 1.75% |
Hurdle rate, annual |  | 7.00% |
Pre-incentive Fee FFO |  | 100.00% |
Pre-Incentive Fee, exceeded |  | 2.1875% |
Pre-Incentive Fee, exceeded, annual |  | 8.75% |
Pre-Incentive Fee |  | 20.00% |
Cumulative realized capital gains |  | 15.00% |
Written notice |  | 120 days |
Financing fee |  | $ 166 | $ 262
Dealer-manager fees |  | $ 4,961 | 4,711
Prior Advisory Agreement |  |  |
Related Party Transaction [Line Items] |  |  |
Management fee |  | 0.50% |
Base management fee, quarterly |  | 0.125% |
Current Advisory Agreement |  |  |
Related Party Transaction [Line Items] |  |  |
Management fee |  | 0.60% |
Base management fee, quarterly |  | 0.15% |
Gladstone Securities |  |  |
Related Party Transaction [Line Items] |  |  |
Financing fee |  | 0.14% |
Preferred Stock | Series B Preferred Stock |  |  |
Related Party Transaction [Line Items] |  |  |
Selling commission fee | 7.00% |  |
Dealer-manager fee | 3.00% |  |
Preferred Stock | Series B Preferred Stock | Gladstone Securities |  |  |
Related Party Transaction [Line Items] |  |  |
Dealer-manager fees |  |  | 2,500
Preferred Stock | Series C Preferred Stock |  |  |
Related Party Transaction [Line Items] |  |  |
Selling commission fee | 6.00% |  |
Dealer-manager fee | 3.00% |  |
Dealer-manager fees |  | $ 5,000 | $ 2,200
Gladstone Securities | Minimum | Gladstone Securities |  |  |
Related Party Transaction [Line Items] |  |  |
Financing fee |  | 0.50% |
Gladstone Securities | Maximum | Gladstone Securities |  |  |
Related Party Transaction [Line Items] |  |  |
Financing fee |  | 1.00% |

X
- Definition Amount to be paid to adviser in percentage of pre incentive fee condition one. + References No definition available. + Details
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- Definition Amount to be paid to adviser in percentage of pre incentive fee condition two. + References No definition available. + Details
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- Definition Dealer-Manager Fee Percent Of Gross Proceeds Limit + References No definition available. + Details
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- Definition Financing Fee + References No definition available. + Details
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- Definition Incentive fee per advisory agreement. + References No definition available. + Details
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- Definition Maximum annual percentage of stockholders equity to pay full pre incentive fee to adviser. + References No definition available. + Details
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- Definition Number of Executive Officers That Serve As Directors + References No definition available. + Details
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- Definition Pre incentive fee in percentage of common stockholders equity that awards adviser hundred percent of amount of pre incentive fee maximum percentage. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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