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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		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 224,510	$ 199,789	$ 672,639	$ 568,063
North America
Disaggregation of Revenue [Line Items]
Revenues	126,699	105,384	375,115	307,243
Europe
Disaggregation of Revenue [Line Items]
Revenues	57,409	58,813	174,264	159,281
Asia
Disaggregation of Revenue [Line Items]
Revenues	26,953	25,504	87,916	72,046
Rest of world
Disaggregation of Revenue [Line Items]
Revenues	13,449	10,088	35,344	29,493
Parts and consumables
Disaggregation of Revenue [Line Items]
Revenues	141,857	131,225	433,781	374,307
Capital
Disaggregation of Revenue [Line Items]
Revenues	82,653	68,564	238,858	193,756
Point in Time
Disaggregation of Revenue [Line Items]
Revenues	201,557	181,407	603,117	511,303
Over Time
Disaggregation of Revenue [Line Items]
Revenues	$ 22,953	$ 18,382	$ 69,522	$ 56,760

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