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Property And Equipment | 12 Months Ended
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Dec. 31, 2024
Property and Equipment |
Property And Equipment | Note 5 — Property and Equipment The following is a summary of the gross components of property and equipment (dollars in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ | December 31,
​ | ​ | Estimated Useful Life |  | 2024 |  | 2023
Vessels |  | 15 to 30 years | ​ | $ | 2,383,245 | ​ | $ | 2,406,089
Systems and equipment | ​ | 5 to 15 years | ​ | ​ | 345,093 | ​ | ​ | 337,913
ROVs and trenchers |  | 5 to 10 years | ​ |  | 261,417 | ​ |  | 252,753
Buildings and other |  | 5 to 39 years | ​ |  | 79,000 | ​ |  | 81,816
Total property and equipment | ​ | ​ | ​ | $ | 3,068,755 | ​ | $ | 3,078,571
​

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