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Long-Term Debt - Maturities Of Long-Term Debt (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023 | Dec. 01, 2023
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Less than one year | $ 8,965 |  |
One to two years | 9,412 |  |
Two to three years | 9,881 |  |
Over five years | 300,000 |  |
Gross debt | 328,258 | $ 372,779 |
Unamortized debt discount | (1,297) |  |
Unamortized debt issuance costs | (8,332) |  |
Total debt | 318,629 |  |
Less: current maturities | (8,965) | (48,292) |
Long-term debt | 309,664 | 313,430 |
MARAD Debt (matures February 2027) |  |  |
Debt Instrument [Line Items] |  |  |
Less than one year | 8,965 |  |
One to two years | 9,412 |  |
Two to three years | 9,881 |  |
Gross debt | 28,258 | 32,580 |
Unamortized debt issuance costs | (1,342) |  |
Total debt | 26,916 |  |
Less: current maturities | (8,965) |  |
Long-term debt | 17,951 |  |
2029 Notes (mature March 2029) |  |  |
Debt Instrument [Line Items] |  |  |
Over five years | 300,000 |  |
Gross debt | 300,000 | $ 300,000 | $ 300,000
Unamortized debt discount | (1,297) |  |
Unamortized debt issuance costs | (6,990) |  |
Total debt | 291,713 |  |
Long-term debt | $ 291,713 |  |

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