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Intangible Assets, Goodwill and Other Assets (Tables) | 12 Months Ended
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Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets | The following table reflects the components of intangible assets being amortized at December 31, 2021 and 2020:
|  |  | December 31, 2021 |  | December 31, 2020
| Weighted Amortization Period in Years |  | Gross Carrying Amount |  | Accumulated Amortization |  | Carrying Value |  | Gross Carrying Amount |  | Accumulated Amortization |  | Carrying Value
Marine contract intangibles | 20 |  | $ | 800 |  |  | $ | 607 |  |  | $ | 193 |  |  | $ | 800 |  |  | $ | 571 |  |  | $ | 229 |
Offshore pipeline contract intangibles | 19 |  | 158,101 |  |  | 53,394 |  |  | 104,707 |  |  | 158,101 |  |  | 45,073 |  |  | 113,028 |
Other | 9 |  | 37,933 |  |  | 15,770 |  |  | 22,163 |  |  | 29,244 |  |  | 13,759 |  |  | 15,485 |
Total |  |  | $ | 196,834 |  |  | $ | 69,771 |  |  | $ | 127,063 |  |  | $ | 188,145 |  |  | $ | 59,403 |  |  | $ | 128,742 |
Schedule of Estimated Amortization Expense | The following table reflects our estimated amortization expense for each of the five subsequent fiscal years:
| 2022 |  | 2023 |  | 2024 |  | 2025 |  | 2026
Marine contract intangibles | $ | 35 |  |  | $ | 34 |  |  | $ | 33 |  |  | $ | 32 |  |  | $ | 30 |
Offshore pipeline contract intangibles | 8,321 |  |  | 8,321 |  |  | 8,321 |  |  | 8,321 |  |  | 8,321 |
Other | 3,414 |  |  | 3,147 |  |  | 2,783 |  |  | 2,560 |  |  | 2,261 |
Total | $ | 11,770 |  |  | $ | 11,502 |  |  | $ | 11,137 |  |  | $ | 10,913 |  |  | $ | 10,612 |
Schedule of Other Assets | Other assets consisted of the following:
| December 31,
| 2021 |  | 2020
Deferred marine charges, net (1) | $ | 19,930 |  |  | $ | 20,714 |
Long-term contract assets (2) | — |  |  | 12,065 |
Unamortized debt issuance costs on Revolving Loan | 4,736 |  |  | 5,842 |
Other deferred costs | 13,593 |  |  | 7,226 |
Other assets, net of amortization | $ | 38,259 |  |  | $ | 45,847 |
(1) See discussion of deferred charges on marine transportation assets in the Summary of Accounting Policies (Note 2). (2) See Revenue Recognition (Note 3) for discussion on the circumstances that result in the recognition of contract assets.

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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