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Strategic Alliance with Allseas and Affiliates - Credit Facility with Allseas Affiliate (Details) $ in Thousands |  |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
May 12, 2025 USD ($) shares | Mar. 24, 2025 USD ($) | Sep. 09, 2024 USD ($) D item | Mar. 22, 2023 USD ($) D | Jun. 30, 2025 USD ($) shares | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) shares | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) shares
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Underutilization fees |  |  |  |  | $ 900 | $ 100 | $ 900 | $ 100 |
Proceeds from Drawdown of Allseas Short-Term Debt |  |  |  |  |  |  |  | 2,000 |
Short-term debt |  |  |  |  | 2,478 |  | 2,478 |  | $ 11,775
Interest Expense |  |  |  |  |  |  | 128 | 25 |
Repaid the outstanding loan amount |  |  |  |  |  |  | 7,500 |  |
Accounts payable and accrued liabilities |  |  |  |  | 47,099 |  | 47,099 |  | $ 42,754
Related party |  |  |  |  |  |  |  |  |
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Underutilization fees |  |  |  |  | 700 | 200 | 1,200 | 200 |
Interest Expense |  |  |  |  | $ 100 | $ 50 | $ 100 | $ 50 |
Allseas and affiliates | Related party |  |  |  |  |  |  |  |  |
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Gross proceeds | $ 7,000 |  |  |  |  |  |  |  |
Allseas | Common Stock |  |  |  |  |  |  |  |  |
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Shares owned | shares |  |  |  |  | 56,100,000 |  | 56,100,000 |  | 53,800,000
Percentage of common stock shares outstanding |  |  |  |  | 14.10% |  | 14.10% |  | 15.80%
Allseas Investments SA | Related party | Class C Warrants |  |  |  |  |  |  |  |  |
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Number of warrants agreed to sell and issue | shares | 2,333,333 |  |  |  |  |  |  |  |
Allseas Investments SA | Related party | Working Capital Loan Agreement |  |  |  |  |  |  |  |  |
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Number of days average considered for basis spread | D |  |  | 180 |  |  |  |  |  |
Proceeds from Drawdown of Allseas Short-Term Debt |  |  | $ 7,500 |  |  |  |  |  |
Number of installments for repayment | item |  |  | 2 |  |  |  |  |  |
Interest Expense |  |  |  |  | $ 100 |  | $ 200 |  |
Repaid the outstanding loan amount |  |  |  |  | 7,500 |  |  |  |
Repaid the outstanding interest amount |  |  |  |  | $ 500 |  |  |  |
Allseas Investments SA | Related party | Working Capital Loan Agreement | If Debt is Payable on January 2, 2025 |  |  |  |  |  |  |  |  |
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Interest rate |  |  | 4.00% |  |  |  |  |  |
Allseas Investments SA | Related party | Working Capital Loan Agreement | If Debt Interest Payments Deferred to Repayment Date |  |  |  |  |  |  |  |  |
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Interest rate |  |  | 5.00% |  |  |  |  |  |
Allseas Investments SA | Related party | Common Stock |  |  |  |  |  |  |  |  |
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Number of shares agreed to sell and issue | shares | 2,333,333 |  |  |  |  |  |  |  |
Unsecured Credit Facility |  |  |  |  |  |  |  |  |
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Line of credit facility interest rate term |  |  |  | semi-annually |  |  |  |  |
Line of credit | Allseas and affiliates | Related party |  |  |  |  |  |  |  |  |
Strategic Alliance with Allseas and Affiliates |  |  |  |  |  |  |  |  |
Aggregate borrowed amount |  |  |  | $ 25,000 |  |  |  |  |
Number of days average considered for basis spread | D |  |  |  | 180 |  |  |  |  |
Interest rate |  |  |  | 4.00% |  |  |  |  |
Interest paid in kind at maturity |  |  |  | 5.00% |  |  |  |  |
Underutilization fee (in percentage) |  |  |  | 4.00% |  |  |  |  |
Underutilization fees |  | $ 2,000 |  |  |  |  |  |  |
Short-term debt |  |  |  |  |  |  |  |  | $ 7,500
Related party transaction, amounts of transaction |  |  |  |  |  |  | $ 32,400 |  | 33,300
Accounts payable and accrued liabilities |  |  |  |  |  |  |  |  | $ 25,800

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