Nature of Operations and Summary of Significant Accounting Policies - Revenue Recognition Method and Disaggregation of Revenue by Product Type and Geography (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 245,053	$ 221,649	$ 474,811	$ 448,129
North America
Disaggregation of Revenue [Line Items]
Revenue	135,385	124,080	267,838	248,416
Europe
Disaggregation of Revenue [Line Items]
Revenue	60,625	58,489	114,782	116,855
Asia
Disaggregation of Revenue [Line Items]
Revenue	32,867	28,976	60,637	60,963
Rest of world
Disaggregation of Revenue [Line Items]
Revenue	16,176	10,104	31,554	21,895
Parts and consumables
Disaggregation of Revenue [Line Items]
Revenue	153,082	145,680	304,645	291,924
Capital
Disaggregation of Revenue [Line Items]
Revenue	91,971	75,969	170,166	156,205
Point in Time
Disaggregation of Revenue [Line Items]
Revenue	222,235	198,249	426,474	401,560
Over Time
Disaggregation of Revenue [Line Items]
Revenue	$ 22,818	$ 23,400	$ 48,337	$ 46,569