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v3.25.3

Subsequent Events - Additional Information (Detail) $ in Millions |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 24, 2025 USD ($) | Oct. 01, 2025 USD ($) Engine | Sep. 30, 2025 USD ($) Engines shares | Sep. 30, 2025 USD ($) shares | Dec. 31, 2024 shares
Subsequent Event [Line Items] |  |  |  |  |
Common stock, shares outstanding | shares |  |  | 41,879,859 | 41,879,859 | 41,331,719
Common stock, shares authorized | shares |  |  | 125,000,000 | 125,000,000 | 125,000,000
Impairment loss held for sale |  |  | $ 7.3 | $ 53.4 |
GE Model CF34-8C [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Number of engine sold | Engines |  |  | 13 |  |
Subsequent Event [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Gross proceeds from sale of asset |  | $ 15.0 |  |  |
Non refundable advisory fee | $ 3.5 |  |  |  |
Impairment loss held for sale |  | 7.1 |  |  |
Subsequent Event [Member] | UST Loan [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Gross proceeds from sale of asset |  | 12.1 |  |  |
United Aircraft Purchase Agreement [Member] | GE Model CF34-8C [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Expected proceeds from sale of asset |  | 6.2 |  |  |
United Aircraft Purchase Agreement [Member] | Subsequent Event [Member] | Minimum [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Gross proceeds from sale of asset |  | 7.0 |  |  |
United Aircraft Purchase Agreement [Member] | Subsequent Event [Member] | Maximum [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Gross proceeds from sale of asset |  | $ 13.2 |  |  |
United Aircraft Purchase Agreement [Member] | Subsequent Event [Member] | GE Model CF34-8C [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Number of engine sold | Engine |  | 8 |  |  |
Amendment to Loan and Guarantee Agreement [Member] | Subsequent Event [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Reduction in interest rate under loan agreement | 0.00% |  |  |  |
Debt instrument, face amount | $ 12.3 |  |  |  |
Security and Control Agreement [Member] | Subsequent Event [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Deposited amount to collateral account | $ 31.9 |  |  |  |

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