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Nature of Operations and Summary of Significant Accounting Policies - Intangible Assets By Major Asset Class (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 02, 2021 | Jan. 02, 2021
Acquired Definite-Lived Intangible Assets [Line Items] |  |
Gross | $ 310,528 | $ 254,114
Accumulated Amortization | (129,334) | (114,458)
Currency Translation | (4,979) | (3,118)
Net | 176,215 | 136,538
Acquired Intangible Assets [Abstract] |  |
Gross | 339,587 | 278,214
Currency Translation | (4,925) | (2,791)
Net | 205,328 | 160,965
Tradenames |  |
Acquired Indefinite-Lived Intangible Assets [Line Items] |  |
Gross | 29,059 | 24,100
Currency Translation | 54 | 327
Net | 29,113 | 24,427
Customer relationships |  |
Acquired Definite-Lived Intangible Assets [Line Items] |  |
Gross | 215,366 | 173,728
Accumulated Amortization | (75,978) | (65,488)
Currency Translation | (2,613) | (1,316)
Net | 136,775 | 106,924
Product technology |  |
Acquired Definite-Lived Intangible Assets [Line Items] |  |
Gross | 67,625 | 56,111
Accumulated Amortization | (34,615) | (31,655)
Currency Translation | (1,468) | (1,005)
Net | 31,542 | 23,451
Tradenames |  |
Acquired Definite-Lived Intangible Assets [Line Items] |  |
Gross | 7,427 | 6,027
Accumulated Amortization | (3,278) | (2,946)
Currency Translation | (346) | (282)
Net | 3,803 | 2,799
Other |  |
Acquired Definite-Lived Intangible Assets [Line Items] |  |
Gross | 20,110 | 18,248
Accumulated Amortization | (15,463) | (14,369)
Currency Translation | (552) | (515)
Net | $ 4,095 | $ 3,364

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