XML 81 R37.htm IDEA: XBRL DOCUMENT v3.25.4
Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets
Our identifiable intangible assets are as follows (in thousands):
As of December 31, 2025
As of December 31, 2024
Useful Life
Gross
Accumulated Amortization
Net
Gross
Accumulated Amortization
Net
Intangible assets subject to amortization:
Customer relationships
11.6 - 32.2 years
$
302,541 
$
(69,519)
$
233,022 
$
234,231 
$
(47,320)
$
186,911 
Rights-of-way assets
8 - 86.6 years
23,649 
(2,300)
21,349 
14,892 
(1,778)
13,114 
Favorable contract
4.8 years
4,775 
(1,312)
3,463 
4,775 
(307)
4,468 
Intangible assets not subject to amortization:
Rights-of-way assets
Indefinite
112,627 
112,627 
76,965 
76,965 
Total
$
443,592 
$
(73,131)
$
370,461 
$
330,863 
$
(49,405)
$
281,458 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
Amortization expense for the next five years is estimated to be as follows (in thousands):
2026
$
23,725 
2027
$
23,725 
2028
$
23,725 
2029
$
23,166 
2030
$
22,720