Long Term Debt - Schedule of Long-term Debt Obligations (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 331,191	$ 353,024
Current portion due within one year	(28,605)	(28,365)
Unamortized debt discount	(26,905)	(32,885)
Deferred financing costs	(3,356)	(4,230)
Long-term debt, less current portion	272,325	287,544
Guaranteed Notes
Debt Instrument [Line Items]
Long-term Debt, Gross	90,000	90,000
New Convertible Notes
Debt Instrument [Line Items]
Long-term Debt, Gross	35,000	35,000
2023 SMFH Credit Facility
Debt Instrument [Line Items]
Long-term Debt, Gross	109,800	118,950
Sea-Cat Crewzer III Term Loan Facility
Debt Instrument [Line Items]
Long-term Debt, Gross	11,752	14,227
SEACOR Delta Shipyard Financing
Debt Instrument [Line Items]
Long-term Debt, Gross	61,979	68,647
SEACOR Alpine Credit Facility
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 22,660	$ 26,200