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Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets | Our identifiable intangible assets are as follows (in thousands):
|  |  | As of December 31, 2023 |  | As of December 31, 2022
| Useful Life |  | Gross |  | Accumulated Amortization |  | Net |  | Gross |  | Accumulated Amortization |  | Net
Intangible assets subject to amortization: |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships | 11.6 years |  | $ | 210,000 |  |  | $ | (28,664) |  |  | $ | 181,336 |  |  | $ | 210,000 |  |  | $ | (10,560) |  |  | $ | 199,440 |
Marketing contract | 20 years |  | 144,219 |  |  | (42,064) |  |  | 102,155 |  |  | 144,219 |  |  | (34,853) |  |  | 109,366 |
Rights-of-way assets | 8 - 35 years |  | 14,892 |  |  | (1,078) |  |  | 13,814 |  |  | 13,490 |  |  | (377) |  |  | 13,113 |
Intangible assets not subject to amortization: |  |  |  |  |  |  |  |  |  |  |  |  |
Rights-of-way assets | Indefinite |  | 45,722 |  |  |  |  | 45,722 |  |  | 42,877 |  |  |  |  | 42,877 |
Total |  |  | $ | 414,833 |  |  | $ | (71,806) |  |  | $ | 343,027 |  |  | $ | 410,586 |  |  | $ | (45,790) |  |  | $ | 364,796 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance by major class. + References No definition available. + Details
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