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v3.25.2

Business Segment Information (Schedule of Total Assets and Total Growth and Maintenance Capital Expenditures by Reportable Segment) (Details) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Segment Reporting Information [Line Items] |  |  |
Assets | $ 4,838,538 |  | $ 7,037,692
Assets held for discontinued operations | 0 |  | 2,207,420
Capital Expenditures | $ 93,817 | $ 181,160 |
Costs incurred, percentage | 1 | 1 |
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets | $ 4,797,221 |  | 4,790,616
Capital Expenditures | 93,163 | $ 175,072 |
Operating Segments | Offshore pipeline transportation |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets | 2,769,350 |  | 2,748,296
Capital Expenditures | 59,136 | 119,414 |
Operating Segments | Marine transportation |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets | 629,719 |  | 641,082
Capital Expenditures | 29,452 | 41,842 |
Operating Segments | Onshore transportation and services |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets | 1,398,152 |  | 1,401,238
Capital Expenditures | 4,575 | 13,816 |
Other assets |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets | 41,317 |  | $ 39,656
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital Expenditures | $ 654 | $ 6,088 |

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