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Intangible Assets
 9 Months Ended
Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets
Note 6. Intangible Assets
Intangible assets consisted of the following as of:
September 30, 2023
Useful
Life		Gross Carrying
Value		Accumulated
Amortization		Net Book
Value
(in thousands)
Customer relationships
3-20 years
$608,024 $318,175 $289,849 
Developed technology
2-12 years
106,702 71,298 35,404 
Trade name
3-10 years
38,655 23,183 15,472 
Non-compete agreements
2-5 years
2,404 2,288 116 
Total
$755,785 $414,944 $340,841 
December 31, 2022
Useful
Life		Gross Carrying
Value		Accumulated
Amortization		Net Book
Value
(in thousands)
Customer relationships
3-20 years
$605,753 $265,342 $340,411 
Developed technology
2-12 years
105,766 59,208 46,558 
Trade name
3-10 years
38,131 19,725 18,406 
Non-compete agreements
2-5 years
2,402 2,057 345 
Total$752,052 $346,332 $405,720 
Amortization expense was $22.5 million and $25.2 million for the three months ended September 30, 2023 and 2022, respectively, and $68.6 million and $75.7 million for the nine months ended September 30, 2023 and 2022, respectively.