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Impairments and Other Charges (Details) $ in Thousands	3 Months Ended	12 Months Ended
Impairments and Other Charges (Details) $ in Thousands	Sep. 30, 2021 USD ($)	Dec. 31, 2023 USD ($) Segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Impairment Effects on Earnings Per Share [Line Items]
Proceeds from sale of assets		$ 26,081	$ 36,905	$ 51,342
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]	Asset Impairment Charges
Marine Transportation [Member]
Impairment Effects on Earnings Per Share [Line Items]
Number of reporting units \| Segment		1
Goodwill impairment charge	$ 219,100
Level 3 [Member] \| Marine Transportation [Member]
Impairment Effects on Earnings Per Share [Line Items]
Non-cash pre-tax impairment charge	24,200
HAWAII \| Marine Transportation [Member]
Impairment Effects on Earnings Per Share [Line Items]
Proceeds from sale of assets	17,200
Impairment of Intangible Assets, Finite-Lived	$ 97,500