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Intangible Assets (Tables)
 3 Months Ended
Apr. 03, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Acquired 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 
Summary of Amortization Expense for Acquired Intangibles
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 
Summary of Amortization Expense for Intangible Assets for Each of Next Five Years
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