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