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Goodwill and Other Intangible Assets
 9 Months Ended
Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
The following is a summary of intangible assets at September 30, 2021 and December 31, 2020:
Estimated
Life
(Years)		September 30, 2021December 31, 2020
Gross Carrying
Amount		Accumulated
Amortization		Gross Carrying
Amount		Accumulated
Amortization
Amortizable intangible assets:
Customer lists and contracts
7—10
$655,843 $580,671 $645,739 $563,135 
Non-competition agreements
3—15
66,596 64,857 66,156 64,647 
Site locations152,479,103 1,657,456 2,412,745 1,593,805 
Other
2—15
50,157 39,207 50,018 38,625 
$3,251,699 $2,342,191 $3,174,658 $2,260,212 
Unamortizable intangible assets:
Goodwill$2,180,455 $253,536 $2,165,864 $253,536