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Nature of Operations and Summary of Significant Accounting Policies - Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 28, 2019 | Dec. 29, 2018
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 252,085 | $ 178,755
Accumulated Amortization | (95,333) | (75,179)
Currency Translation | (6,870) | (6,714)
Net | 149,882 | 96,862
Acquired Intangible Assets |  |
Gross | 276,185 | 195,355
Currency Translation | (6,956) | (6,829)
Net | 173,896 | 113,347
Tradenames |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |
Gross | 24,100 | 16,600
Currency Translation | (86) | (115)
Net | 24,014 | 16,485
Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 171,583 | 113,283
Accumulated Amortization | (51,798) | (38,160)
Currency Translation | (4,141) | (4,520)
Net | 115,644 | 70,603
Product technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 56,011 | 46,501
Accumulated Amortization | (27,819) | (23,563)
Currency Translation | (1,709) | (1,677)
Net | 26,483 | 21,261
Tradenames |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 6,527 | 5,227
Accumulated Amortization | (2,421) | (1,980)
Currency Translation | (427) | (390)
Net | 3,679 | 2,857
Other |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 17,964 | 13,744
Accumulated Amortization | (13,295) | (11,476)
Currency Translation | (593) | (127)
Net | $ 4,076 | $ 2,141

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