Long Term Debt - Additional Information (Details) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2023 USD ($) $ / shares	Jun. 30, 2023
Debt Instrument [Line Items]
Class of warrant or right, exercise price of warrants or rights | $ / shares	$ 0.01
Long-term Debt Obligation
Debt Instrument [Line Items]
Letters of credit outstanding, amount | $	$ 1.1
SEACOR Marine Foreign Holdings Credit Facility
Debt Instrument [Line Items]
Interest coverage ratio	2.00
SEACOR Marine Foreign Holdings Credit Facility | Forecast
Debt Instrument [Line Items]
Interest coverage ratio		1.50