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Intangible Assets | 6 Months Ended
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Jun. 30, 2020
Intangible Assets, Net (Excluding Goodwill) [Abstract] |
Intangible Assets | Intangible Assets The following table summarizes the components of our intangible assets at the dates indicated:
| June 30, 2020 |  |  |  |  |  | December 31, 2019 |  |  |  |
| Gross Carrying Amount |  | Accumulated Amortization |  | Carrying Value |  | Gross Carrying Amount |  | Accumulated Amortization |  | Carrying Value
Marine contract intangibles | $ | 27,800 |  |  | $ | 25,752 |  |  | $ | 2,048 |  |  | $ | 27,800 |  |  | $ | 23,033 |  |  | $ | 4,767 |
Offshore pipeline contract intangibles | 158,101 |  |  | 40,912 |  |  | 117,189 |  |  | 158,101 |  |  | 36,752 |  |  | 121,349 |
Other | 26,045 |  |  | 13,313 |  |  | 12,732 |  |  | 34,291 |  |  | 21,480 |  |  | 12,811 |
Total | $ | 211,946 |  |  | $ | 79,977 |  |  | $ | 131,969 |  |  | $ | 220,192 |  |  | $ | 81,265 |  |  | $ | 138,927 |
Our amortization of intangible assets for the periods presented was as follows:
| Three Months Ended June 30, |  |  |  | Six Months Ended June 30, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
Amortization of intangible assets | $ | 4,146 |  |  | $ | 4,812 |  |  | $ | 8,262 |  |  | $ | 9,101 |
We estimate that our amortization expense for the next five years will be as follows:
Remainder of | 2020 | $ | 7,355 |
| 2021 | $ | 10,553 |
| 2022 | $ | 10,394 |
| 2023 | $ | 10,126 |
| 2024 | $ | 9,811 |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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- References No definition available. + Details
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