Acquisitions - Additional Information (Details) - USD ($)		3 Months Ended		12 Months Ended
	Jan. 29, 2021	Apr. 04, 2021	Mar. 29, 2020	Dec. 31, 2019	Apr. 15, 2019
Business Acquisition [Line Items]
Purchase price, net of cash acquired		$ 72,232,000	$ (590,000)
Long-term debt acquired	$ 1,841,000
Amortization of intangibles		9,947,000	16,185,000
Selling, general and administrative expense		98,449,000	$ 98,389,000
OTN Systems N.V.
Business Acquisition [Line Items]
Percentage of outstanding shares acquired	100.00%
Purchase price, net of cash acquired	$ 73,300,000
Receivables	$ 7,617,000
Tax basis in acquired goodwill					$ 0
Post-acquisition revenues		4,100,000
Post-acquisition income (loss) before taxes of acquiree		3,400,000
Business Combination, Acquisition Related Costs		300,000
Amortization of intangibles		1,600,000
Inventory adjustment		800,000
Opterna International Corp.
Business Acquisition [Line Items]
Estimated earnout consideration		0		$ 5,800,000
Selling, general and administrative expense		$ 5,800,000