Revenues - Major Product Category (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2021	Mar. 29, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 536,381	$ 463,526
Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	226,355	212,213
Industrial Solutions
Disaggregation of Revenue [Line Items]
Revenues	310,026	251,313
Broadband & 5G
Disaggregation of Revenue [Line Items]
Revenues	105,091	96,103
Broadband & 5G | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	105,091	96,103
Broadband & 5G | Industrial Solutions
Disaggregation of Revenue [Line Items]
Revenues	0	0
Cyber-security
Disaggregation of Revenue [Line Items]
Revenues	27,705	25,719
Cyber-security | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	0	0
Cyber-security | Industrial Solutions
Disaggregation of Revenue [Line Items]
Revenues	27,705	25,719
Industrial Automation
Disaggregation of Revenue [Line Items]
Revenues	282,321	225,594
Industrial Automation | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	0	0
Industrial Automation | Industrial Solutions
Disaggregation of Revenue [Line Items]
Revenues	282,321	225,594
Smart Buildings
Disaggregation of Revenue [Line Items]
Revenues	121,264	116,110
Smart Buildings | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	121,264	116,110
Smart Buildings | Industrial Solutions
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0