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Intangible Assets
 3 Months Ended
Apr. 03, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets Intangible Assets
The following table summarizes acquired intangible assets as follows: 
April 3, 2021December 31, 2020
(In thousands)
Weighted
Average Life
Gross Carrying
Amount
Accumulated
Amortization
Gross Carrying
Amount
Accumulated
Amortization
Patents11 years$2,146 $1,913 $2,146 $1,891 
Non-compete Agreement4 years11,082 10,212 11,082 10,085 
Trade Names10 years11,476 7,784 11,512 7,537 
Completed and Unpatented Technology9 years47,982 26,939 48,043 25,766 
Customer Relationships15 years142,367 62,275 142,478 60,096 
Total Intangible Assets12 years$215,053 $109,123 $215,261 $105,375 
All acquired intangible assets other than goodwill and one trade name are being amortized. Amortization expense for acquired intangibles is summarized as follows: 
Three Months Ended
(In thousands)
April 3, 2021March 28, 2020
Amortization Expense
$3,855 $4,265 
Amortization expense for acquired intangible assets expected for 2021 and for each of the next five years is summarized as follows:
(In thousands)
2021$15,356 
2022$14,911 
2023$13,878 
2024$12,856 
2025$10,935 
2026$9,533