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Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 01, 2022 | Dec. 31, 2021
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Total Cost | $ 294,210 | $ 284,112
Total Foreign Currency Translation | (10,748) | (9,529)
Finite Life |  |
Accumulated amortization | (129,456) | (124,843)
Total Book Value | 154,006 | 149,740
Trade Names |  |
Indefinite Life |  |
Cost | 62,633 | 62,633
Indefinite-lived Intangible Assets, Foreign Currency Translation Gain (Loss) | (1,577) | (1,112)
Book value | 61,056 | 61,521
Customer Relationships |  |
Finite Life |  |
Cost | 202,903 | 194,505
Accumulated amortization | (112,499) | (108,657)
Foreign currency translation | (8,410) | (7,710)
Book value | $ 81,994 | $ 78,138
Weighted average life in years | 13 years | 13 years
Patents and Proprietary Technology |  |
Finite Life |  |
Cost | $ 26,974 | $ 26,074
Accumulated amortization | (16,454) | (15,734)
Foreign currency translation | (761) | (707)
Book value | $ 9,759 | $ 9,633
Weighted average life in years | 10 years | 10 years
Trademarks, Trade Names and Other |  |
Finite Life |  |
Cost | $ 1,700 | $ 900
Accumulated amortization | (503) | (452)
Foreign currency translation | 0 | 0
Book value | $ 1,197 | $ 448
Weighted average life in years | 5 years | 5 years

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