Discontinued Operations - Reconciliation of Major Classes of Assets and Liabilities of Discontinued Operations (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Discontinued Operations
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Trade payables	$ 319	$ 1,157
Accrued liabilities and other	601	228
Total liabilities associated with discontinued operations	920	1,385
Offshore Services | Discontinued Operations
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Trade payables	319	1,157
Accrued liabilities and other	506	0
Total liabilities associated with discontinued operations	825	1,157
Maritech
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Trade payables	0
Accrued liabilities and other	95
Total liabilities associated with discontinued operations	$ 95
Maritech | Discontinued Operations
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Trade payables		0
Accrued liabilities and other		228
Total liabilities associated with discontinued operations		$ 228