XML 43 R16.htm IDEA: XBRL DOCUMENT v3.20.4
Other Intangible Assets
 12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Other Intangible Assets Other Intangible Assets
Our identifiable intangible assets are as follows (in thousands):
UsefulAccumulated
As of December 31, 2020LifeGrossAmortizationNet
Intangible assets subject to amortization:
Marketing contract 20144,219 (20,431)123,788 
Intangible assets not subject to amortization:
Rights-of-way assets Indefinite36,316 36,316 
Total$180,535 $(20,431)$160,104 
UsefulAccumulated
As of December 31, 2019LifeGrossAmortizationNet
Intangible assets subject to amortization:
Marketing contract 20144,219 (13,220)$130,999 
Intangible assets not subject to amortization:
Rights-of-way assets Indefinite15,597 15,597 
Total$159,816 $(13,220)$146,596 
Amortization of intangible assets was $7.2 million during both the years ended December 31, 2020 and 2019. Amortization of intangible assets was $6.1 million during the year ended December 31, 2018. It is included as a reduction of net revenue on the accompanying consolidated statements of income and comprehensive income. Amortization expense is estimated to be $7.2 million for each of the years ended December 31, 2021 through 2025.