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INTANGIBLE ASSETS
 9 Months Ended
Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
INTANGIBLE ASSETS INTANGIBLE ASSETS
A summary of intangible assets as of September 30, 2022 and December 31, 2021 is as follows (in thousands): 
 September 30, 2022December 31, 2021
 (unaudited)   
 Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount		Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount
Customer relationships$174,400 $(97,362)$77,038 $175,156 $(88,783)$86,373 
Non-compete agreements5,288 (5,288)— 5,503 (5,503)— 
Trade names24,520 (22,417)2,103 24,743 (22,252)2,491 
Technology7,784 (6,998)786 7,843 (6,885)958 
Licenses827 (800)27 850 (774)76 
Total$212,819 $(132,865)$79,954 $214,095 $(124,197)$89,898 
Intangible assets - discontinued operations(19,468)18,094 (1,374)(20,186)18,606 (1,580)
Intangible assets - continuing operations$193,351 $(114,771)$78,580 $193,909 $(105,591)$88,318 

Amortization expense of intangible assets for the three months ended September 30, 2022 and September 30, 2021 was $3.4 million and $3.4 million, respectively. Amortization expense of intangible assets for the nine months ended September 30, 2022 and September 30, 2021 was $10.2 million and $10.5 million, respectively. Amortization expense for intangible assets is forecast to be approximately $13.1 million per year from 2022 through 2025.
The weighted-average amortization period for intangible assets subject to amortization was 13.7 years as of September 30, 2022 and December 31, 2021.