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Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 27, 2024 shares | Jan. 03, 2024 shares | Dec. 27, 2023 shares | Jun. 30, 2025 USD ($) Aircraft shares | Jun. 30, 2024 USD ($) | Mar. 31, 2024 shares | Jun. 30, 2025 USD ($) Aircraft shares | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) Security Segment Aircraft shares | Dec. 31, 2023 USD ($) Aircraft Security shares | Nov. 10, 2023 | Jan. 01, 2023 USD ($) | Nov. 01, 2021 USD ($)
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] |  |  |  |  |  |  | srt:ChiefExecutiveOfficerMember |  | srt:ChiefExecutiveOfficerMember |  |  |  |
Accounts receivable, allowance for credit losses |  |  |  | $ 80 |  |  | $ 80 |  | $ 80 | $ 80 |  |  |
Number of operating segments | Segment |  |  |  |  |  |  |  |  | 1 |  |  |  |
Guaranteed revenue program deposits |  |  |  |  |  |  |  |  | $ 0 |  |  |  |
Number of debt securities in an unrealized loss position | Security |  |  |  |  |  |  |  |  | 50 | 13 |  |  |
Guaranteed Revenue Program, drawdown period |  |  |  |  |  |  |  |  |  |  |  |  | 10 months
Advertising expense |  |  |  |  |  |  |  |  | $ 8,707 | $ 6,013 |  |  |
Customer deposit per aircraft |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,250
Notes receivable, allowance for credit losses |  |  |  | 0 |  |  | 0 |  | 0 | 2,558 |  |  |
Debt securities, available-for-sale, allowance for credit loss |  |  |  |  |  |  |  |  |  |  |  | $ 0 |
Period for stockholder approval of equity incentive plan |  |  |  |  |  |  |  |  |  |  | 12 months |  |
Impairment loss |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Realized (gain) loss on investment securities |  |  |  |  |  |  | $ 294 | $ 46 | 59 | 238 |  |  |
Guaranteed Revenue Program, minimum term |  |  |  |  |  |  |  |  |  |  |  |  | 28 months
Shares purchased by employees (in shares) | shares |  |  |  |  |  |  | 0 |  |  |  |  |  |
Fair value of debt securities in an unrealized loss position |  |  |  |  |  |  |  |  | 6,562 | 4,263 |  |  |
Fair value of debt securities in an unrealized loss position greater than one year |  |  |  |  |  |  |  |  | 1,927 | 2,759 |  |  |
Unrealized loss on investments |  |  |  |  |  |  |  |  | $ 297 | 395 |  |  |
Fractional ownership, contractual term (up to) |  |  |  |  |  |  |  |  | 5 years |  |  |  |
Aircraft held for sale, current portion |  |  |  | 8,629 |  |  | $ 8,629 |  | $ 7,786 | 0 |  |  |
Aircraft held for sale, non-current portion |  |  |  | 0 |  |  | 0 |  | 4,085 | 0 |  |  |
Capitalized sales commissions |  |  |  | 412 | $ 283 |  | 857 | 536 | 1,748 | 1,315 |  |  |
Contract acquisition costs, current |  |  |  | 854 |  |  | 854 |  | 923 | 514 |  |  |
Contract acquisition costs, noncurrent |  |  |  | 1,122 |  |  | 1,122 |  | 965 | 631 |  |  |
Amortization of contract costs |  |  |  | $ 390 | $ 272 |  | $ 754 | $ 547 | $ 1,136 | $ 827 |  |  |
Number of aircrafts held for sale | Aircraft |  |  |  | 2 |  |  | 2 |  | 3 | 0 |  |  |
Employee Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Shares purchased by employees (in shares) | shares |  |  |  |  |  |  |  |  | 0 |  |  |  |
Common Class A | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of class A common stock upon conversion of bridge notes (in shares) | shares | 73,947 | 203,500 |  |  |  | 277,447 |  |  | 277,447 |  |  |  |
Common Class A | Affiliates and Non-Affiliates of EGA Sponsor | Shares Issued for Bridge Notes | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of class A common stock upon conversion of bridge notes (in shares) | shares |  |  | 9,550,274 |  |  |  |  |  |  |  |  |  |
Series A Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares outstanding (in shares) | shares |  |  |  | 25,000 |  |  | 25,000 |  | 25,000 | 25,000 |  |  |
Series B Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares outstanding (in shares) | shares |  |  |  | 29,737 |  |  | 29,737 |  | 29,737 | 25,510 |  |  |
Aircraft Engine |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated Useful Life |  |  |  |  |  |  |  |  | 7 years |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Customer deposits |  |  |  |  |  |  |  |  | $ 500 |  |  |  |

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