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Segment Information - Operating Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 04, 2021 | Jul. 05, 2020 | Jul. 04, 2021 | Jul. 05, 2020
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 294,785 | $ 259,504 | $ 548,045 | $ 547,673
Depreciation and amortization | 11,736 | 10,808 | 23,670 | 21,748
Operating Segments | AMS |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 156,665 | 151,222 | 283,632 | 309,313
AOI | 21,098 | 23,942 | 33,011 | 47,492
Depreciation and amortization | 4,504 | 3,966 | 9,227 | 7,873
Operating Segments | EAAA |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 138,120 | 108,282 | 264,413 | 238,360
AOI | 9,960 | 3,530 | 17,971 | 9,330
Depreciation and amortization | $ 7,232 | $ 6,842 | $ 14,443 | $ 13,875

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