Revenues - Location of Customer (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Revenues	$ 549,688	$ 533,098	$ 548,352	$ 500,140	$ 552,052	$ 554,037	$ 560,898	$ 498,715	$ 2,131,278	$ 2,165,702	$ 2,087,185
Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues									1,081,232	1,095,900	1,054,847
Industrial Solutions
Disaggregation of Revenue [Line Items]
Revenues									1,050,046	1,069,802	1,032,338
Americas
Disaggregation of Revenue [Line Items]
Revenues									1,437,571	1,458,664	1,408,711
Americas | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues									830,197	838,874	802,274
Americas | Industrial Solutions
Disaggregation of Revenue [Line Items]
Revenues									607,374	619,790	606,437
EMEA
Disaggregation of Revenue [Line Items]
Revenues									409,762	425,779	415,055
EMEA | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues									135,734	135,241	134,270
EMEA | Industrial Solutions
Disaggregation of Revenue [Line Items]
Revenues									274,028	290,538	280,785
APAC
Disaggregation of Revenue [Line Items]
Revenues									283,945	281,259	263,419
APAC | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues									115,301	121,785	118,303
APAC | Industrial Solutions
Disaggregation of Revenue [Line Items]
Revenues									$ 168,644	$ 159,474	$ 145,116