Severance, Restructuring, and Acquisition Integration Activities Severance, Restructuring, and Acquisition Integration Activities - Severance, Restructuring and Integration Costs by Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Severance									$ 10,323	$ 5,211	$ 7,082
Other Restructuring and Integration Costs									58,290	37,579	24,058
Total Costs	$ 11,600	$ 11,700	$ 24,900	$ 20,400	$ 9,900	$ 16,700	$ 9,600	$ 6,600	68,613	42,790	31,140
Enterprise Solutions
Restructuring Cost and Reserve [Line Items]
Severance									9,945	4,535	520
Other Restructuring and Integration Costs									47,618	24,508	18,041
Total Costs									57,563	29,043	18,561
Industrial Solutions
Restructuring Cost and Reserve [Line Items]
Severance									378	676	6,562
Other Restructuring and Integration Costs									10,672	13,071	6,017
Total Costs									$ 11,050	$ 13,747	$ 12,579