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v3.25.3

Business Segment Information (Schedule of Segment Information) (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 414,001,000 | $ 397,291,000 | $ 1,189,660,000 | $ 1,261,917,000
Total Segment Margin | 146,576,000 | 121,979,000 | 403,840,000 | 407,162,000
Offshore pipeline transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 143,306,000 | 101,119,000 | 377,563,000 | 302,133,000
Marine transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 77,058,000 | 78,496,000 | 237,319,000 | 243,941,000
Onshore transportation and services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 193,637,000 | 217,676,000 | 574,778,000 | 715,843,000
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 414,001,000 |  | 1,189,660,000 |
Segment Operating Expenses | (148,217,000) | (140,905,000) | (446,556,000) | (444,597,000)
Segment Product Costs | (114,837,000) | (137,440,000) | (335,007,000) | (456,983,000)
Other Segment Items | (4,371,000) | 3,033,000 | (4,257,000) | 46,825,000
Total Segment Margin | 146,576,000 | 121,979,000 | 403,840,000 | 407,162,000
Operating Segments | Offshore pipeline transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 143,250,000 |  | 377,265,000 |
Segment Operating Expenses | (36,414,000) | (30,303,000) | (105,329,000) | (88,013,000)
Segment Product Costs | 0 | 0 | 0 | 0
Other Segment Items | (5,549,000) | 1,333,000 | (6,749,000) | 41,966,000
Total Segment Margin | 101,343,000 | 72,149,000 | 265,485,000 | 256,086,000
Operating Segments | Marine transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 77,058,000 |  | 237,319,000 |
Segment Operating Expenses | (51,738,000) | (47,219,000) | (152,604,000) | (150,229,000)
Segment Product Costs | 0 | 0 | 0 | 0
Other Segment Items | 250,000 | (209,000) | 693,000 | 262,000
Total Segment Margin | 25,570,000 | 31,068,000 | 85,408,000 | 93,974,000
Operating Segments | Onshore transportation and services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 193,693,000 |  | 575,076,000 |
Operating Segments | Onshore transportation and services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment Operating Expenses | (60,065,000) | (63,383,000) | (188,623,000) | (206,355,000)
Segment Product Costs | (114,837,000) | (137,440,000) | (335,007,000) | (456,983,000)
Other Segment Items | 928,000 | 1,909,000 | 1,799,000 | 4,597,000
Total Segment Margin | 19,663,000 | $ 18,762,000 | 52,947,000 | $ 57,102,000
Intersegment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 0 |  | 0 |
Intersegment | Offshore pipeline transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 56,000 |  | 298,000 |
Intersegment | Marine transportation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 0 |  | 0 |
Intersegment | Onshore transportation and services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ (56,000) |  | $ (298,000) |

X
- Definition Revenues less product costs, operating expenses (excluding non-cash charges such as depreciation and amortization), and segment general and administrative expenses, plus our equity in distributable cash generated by our equity investees. Also excludes the non-cash effects of our stock appreciation rights compensation plan and includes the non-income portion of payments received under direct financing leases. + References No definition available. + Details
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