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Acquisition Activity (Narrative) (Details) - Dynamic Systems Inc. - USD ($)		3 Months Ended
	Nov. 01, 2019	Dec. 31, 2019	Mar. 28, 2020
Business Acquisition [Line Items]
Purchase price	$ 40,481,000
Potential earn out	3,000,000.0
Contingent consideration	$ 0		$ 0
Acquisition related costs		$ 400,000
Patents and acquired technology
Business Acquisition [Line Items]
Finite-lived intangible assets, weighted average useful lives	16 years
Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible assets, weighted average useful lives	15 years

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