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Stockholders' Equity / Members' Deficit and Noncontrolling Interests - Narrative (Details) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) $ / shares shares | Jun. 30, 2024 USD ($) $ / shares shares | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) $ / shares shares | Jun. 30, 2023 USD ($) | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 27, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares | Dec. 27, 2024 shares | Mar. 26, 2024 aircraft | Mar. 04, 2024 $ / shares | Jul. 01, 2023 aircraft
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares authorized (in shares) |  |  |  |  |  |  | 325,000,000 |  |  |  |  |
Preferred stock, shares authorized (in shares) |  |  |  |  |  |  | 25,000,000 |  |  |  |  |
Preferred stock, par value (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 0.0001 |  |  |  |  |
Preferred stock, shares issued (in shares) | 0 |  |  |  |  | 0 |  |  |  |  |  |
Preferred stock, shares outstanding (in shares) | 0 |  |  |  |  | 0 |  |  |  |  |  |
Net loss attributable to noncontrolling interest | $ | $ 92 | $ 2,200 | $ 1,722 | $ 7,650 | $ 4,259 | $ 8,983 | $ 8,891 | $ 10,200 |  |  |  |
Exchange of ownership interest, number of aircrafts and related entities | aircraft |  |  |  |  |  |  |  |  |  | 7 |  | 16
Total ownership after exchange of ownership interest |  |  |  |  |  |  |  |  |  | 1 |  | 1
Gain (loss) on exchange of ownership interest | $ |  | $ 0 |  | $ 0 |  | $ 0 |  |  |  |  |  |
Common Class A |  |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) | 200,000,000 | 200,000,000 |  | 200,000,000 |  | 200,000,000 | 200,000,000 | 0 |  |  |  |
Common stock, par value (in dollars per share) | $ / shares | $ 0.0001 | $ 0.0001 |  | $ 0.0001 |  | $ 0.0001 | $ 0.0001 | $ 0.0001 |  |  | $ 0.0001 |
Common stock, issued (in shares) | 16,647,529 | 17,899,586 |  | 17,899,586 |  | 16,647,529 |  | 0 |  |  |  |
Common stock, outstanding (in shares) | 16,647,529 | 17,899,586 |  | 17,899,586 |  | 16,647,529 |  | 0 |  |  |  |
Number of shares of common stock issued for each common unit redeemed (in shares) |  | 1 |  | 1 |  |  |  |  |  |  |  |
Common Class A | Forecast |  |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of common stock issued for each common unit redeemed (in shares) |  |  |  |  |  |  |  |  | 1 |  |  |
Common Class B |  |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) | 100,000,000 | 100,000,000 |  | 100,000,000 |  | 100,000,000 | 100,000,000 | 0 |  |  |  |
Common stock, par value (in dollars per share) | $ / shares | $ 0.0001 | $ 0.0001 |  | $ 0.0001 |  | $ 0.0001 | $ 0.0001 | $ 0.0001 |  |  |  |
Common stock, issued (in shares) | 59,930,000 | 59,930,000 |  | 59,930,000 |  | 59,930,000 |  | 0 |  |  |  |
Common stock, outstanding (in shares) | 59,930,000 | 59,930,000 |  | 59,930,000 |  | 59,930,000 |  | 0 |  |  |  |
Number of shares of common stock cancelled for each common unit redeemed (in shares) |  | 1 |  | 1 |  |  |  |  |  |  |  |
Common Class B | Forecast |  |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of common stock cancelled for each common unit redeemed (in shares) |  |  |  |  |  |  |  |  | 1 |  |  |

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