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INTANGIBLE ASSETS
 9 Months Ended
Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
INTANGIBLE ASSETS INTANGIBLE ASSETS
A summary of intangible assets as of September 30, 2023 and December 31, 2022 is as follows (in thousands): 
 September 30, 2023
 (unaudited)
 Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount
Customer relationships$164,221 $(99,511)$64,710 
Trade names20,248 (19,698)550 
Technology2,300 (1,744)556 
Licenses683 (683)— 
Intangible assets$187,452 $(121,636)$65,816 

 December 31, 2022
 Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount
Customer relationships$165,231 $(91,296)$73,935 
Trade names20,563 (19,830)733 
Technology2,707 (1,978)729 
Licenses840 (830)10 
Intangible assets$189,341 $(113,934)$75,407 

Amortization expense of intangible assets for the three months ended September 30, 2023 and 2022 was $3.2 million and $3.4 million, respectively. Amortization expense of intangible assets for the nine months ended September 30, 2023 and 2022 was $9.6 million and $10.2 million, respectively.
The weighted-average amortization period for intangible assets subject to amortization was 13.7 years as of September 30, 2023 and December 31, 2022.