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Intangibles
 12 Months Ended
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangibles Intangible assets
Intangible assets other than goodwill were comprised of the following:
 December 31,
 20222021
Indefinite-lived licenses$127,271 $104,214 
Noncompetition agreements51,408 70,495 
Customer relationships and other53,779 63,714 
 232,458 238,423 
Accumulated amortization:
Noncompetition agreements(39,745)(52,813)
Customer relationships and other (10,027)(7,917)
 $182,687 $177,693 
Noncompetition agreements are generally amortized over three years to 10 years and customer relationships are principally amortized over 10 years to 20 years. The weighted average renewal or extension period of customer relationships was two years and three years as of December 31, 2022 and 2021, respectively. Amortization expense from amortizable intangible assets was $11,469, $12,860, and $13,809 for 2022, 2021 and 2020, respectively.
For the years ended December 31, 2022, 2021 and 2020, the Company recognized no impairment charges on any intangible assets.
Scheduled amortization expenses from amortizable intangible assets as of December 31, 2022 were as follows: 
 Noncompetition
agreements		Customer relationships and other
2023$4,742 $4,084 
20242,849 3,956 
20251,721 3,489 
20261,092 3,489 
2027730 3,382 
Thereafter529 25,352 
Total$11,663 $43,752