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Intangible Assets, Goodwill and Other Assets (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 229,075 | $ 203,292
Accumulated Amortization | 87,538 | 75,972
Carrying Value | $ 141,537 | 127,320
Other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Amortization Period in Years | 10 years |
Gross Carrying Amount | $ 70,974 | 45,191
Accumulated Amortization | 17,502 | 14,257
Carrying Value | $ 53,472 | 30,934
Offshore pipeline transportation | Offshore pipeline contract intangibles |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Amortization Period in Years | 19 years |
Gross Carrying Amount | $ 158,101 | 158,101
Accumulated Amortization | 70,036 | 61,715
Carrying Value | $ 88,065 | $ 96,386

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