Severance, Restructuring and Acquisition Integration Activities - Severance, Restructuring and Integration Costs by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Oct. 01, 2017	Sep. 30, 2018	Oct. 01, 2017
Restructuring Cost and Reserve [Line Items]
Total Costs	$ 11,688	$ 16,679	$ 57,010	$ 32,839
Enterprise Solutions
Restructuring Cost and Reserve [Line Items]
Total Costs	9,528	9,309	46,949	23,701
Industrial Solutions
Restructuring Cost and Reserve [Line Items]
Total Costs	2,160	7,370	10,061	9,138
Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance Costs	(1,147)	1,934	10,475	4,263
Employee Severance | Enterprise Solutions
Restructuring Cost and Reserve [Line Items]
Severance Costs	(1,283)	1,222	10,097	3,398
Employee Severance | Industrial Solutions
Restructuring Cost and Reserve [Line Items]
Severance Costs	136	712	378	865
Other Than Severance Costs Restructuring And Integration Costs
Restructuring Cost and Reserve [Line Items]
Other Restructuring and Integration Costs	12,835	14,745	46,535	28,576
Other Than Severance Costs Restructuring And Integration Costs | Enterprise Solutions
Restructuring Cost and Reserve [Line Items]
Other Restructuring and Integration Costs	10,811	8,087	36,852	20,303
Other Than Severance Costs Restructuring And Integration Costs | Industrial Solutions
Restructuring Cost and Reserve [Line Items]
Other Restructuring and Integration Costs	$ 2,024	$ 6,658	$ 9,683	$ 8,273