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INTANGIBLE ASSETS
 12 Months Ended
Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
INTANGIBLE ASSETS INTANGIBLE ASSETS
The following table summarizes acquired intangible assets at December 31 as follows:
 20232022
(In thousands)
Weighted
Average Life
Gross Carrying
Amount
Accumulated
Amortization
Gross Carrying
Amount
Accumulated
Amortization
Patents11 years$2,146 $2,146 $2,146 $2,066 
Non-compete Agreement4 years11,082 11,072 11,082 11,052 
Trade Names10 years11,426 9,973 11,402 9,350 
Completed and Unpatented Technology9 years47,896 38,961 47,855 34,877 
Customer Relationships15 years142,208 87,186 142,133 77,996 
Total Intangible Assets12 years$214,758 $149,338 $214,618 $135,341 
Amortization is computed on the straight line method for financial reporting purposes. Amortization expense for intangibles was $13.9 million, $14.9 million and $15.4 million for 2023, 2022 and 2021, respectively.
Based upon acquired intangible assets at December 31, 2023, amortization expense for each of the next five years is estimated to be:
(In thousands) 
2024$12,856 
2025$10,935 
2026$9,533 
2027$7,825 
2028$7,037