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v3.20.4

Property And Equipment | 12 Months Ended
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Dec. 31, 2020
Property, Plant and Equipment [Abstract] |
Property And Equipment | Note 4 — Property and Equipment The following is a summary of the gross components of property and equipment (dollars in thousands):
|  |  | December 31,
| Estimated Useful Life |  | 2020 |  | 2019
Vessels | 15 to 30 years |  | $ | 2,349,752 |  |  | $ | 2,323,314 |
ROVs, trenchers and ROVDrill | 10 years |  | 263,968 |  |  | 270,004 |
Machinery, equipment and leasehold improvements | 5 to 15 years |  | 335,187 |  |  | 328,956 |
Total property and equipment |  |  | $ | 2,948,907 |  |  | $ | 2,922,274 |

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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