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Intangible Assets (Details) - USD ($) $ in Thousands | Apr. 03, 2020 | Dec. 31, 2019
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Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | $ 334,251 | $ 341,211
Amortizable intangible assets, accumulated amortization | (191,780) | (188,063)
Amortizable intangible assets, net carrying amount | 142,471 | 153,148
Non-amortizable intangible assets | 13,027 | 13,027
Gross carrying amount | 347,278 | 354,238
Net carrying amount | 155,498 | 166,175
Patents and Developed Technologies |  |
Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | 156,336 | 159,217
Amortizable intangible assets, accumulated amortization | (99,090) | (97,523)
Amortizable intangible assets, net carrying amount | 57,246 | 61,694
Customer Relationships |  |
Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | 158,219 | 161,807
Amortizable intangible assets, accumulated amortization | (80,352) | (78,206)
Amortizable intangible assets, net carrying amount | 77,867 | 83,601
Customer Backlog |  |
Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | 2,206 | 2,316
Amortizable intangible assets, accumulated amortization | (2,206) | (2,316)
Trademarks and Trade Names |  |
Schedule of Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets, gross carrying amount | 17,490 | 17,871
Amortizable intangible assets, accumulated amortization | (10,132) | (10,018)
Amortizable intangible assets, net carrying amount | $ 7,358 | $ 7,853

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