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Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets
Our identifiable intangible assets are as follows (in thousands):
UsefulAccumulated
As of December 31, 2022LifeGrossAmortizationNet
Intangible assets subject to amortization:
Customer relationships11.6 years$210,000 $(10,560)$199,440 
Marketing contract 20 years144,219 (34,853)109,366 
Rights-of-way assets
8 - 35 years
13,490 (377)13,113 
Intangible assets not subject to amortization:
Rights-of-way assets Indefinite42,877 42,877 
Total$410,586 $(45,790)$364,796 
UsefulAccumulated
As of December 31, 2021LifeGrossAmortizationNet
Intangible assets subject to amortization:
Marketing contract 20 years$144,219 $(27,642)$116,577 
Intangible assets not subject to amortization:
Rights-of-way assets Indefinite37,280 37,280 
Total$181,499 $(27,642)$153,857