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