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Segment Information - Operating Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 03, 2021 | Oct. 04, 2020 | Oct. 03, 2021 | Oct. 04, 2020
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 312,707 | $ 278,642 | $ 860,752 | $ 826,315
Depreciation and amortization | 11,417 | 11,732 | 35,087 | 33,480
Operating Segments | AMS |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 176,770 | 142,858 | 460,402 | 452,171
AOI | 21,595 | 20,279 | 54,606 | 67,771
Depreciation and amortization | 4,365 | 4,301 | 13,592 | 12,174
Operating Segments | EAAA |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 135,937 | 135,784 | 400,350 | 374,144
AOI | 8,586 | 7,821 | 26,557 | 17,151
Depreciation and amortization | $ 7,052 | $ 7,431 | $ 21,495 | $ 21,306

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