Revenue From Contracts With Customers (Disaggregated Revenue) (Details) - Revenue from contract with customer benchmark - Customer Concentration Risk	3 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Medical | Customer A
Disaggregation of Revenue [Line Items]
Concentration risk percentage	20.00%	25.00%
Medical | Customer B
Disaggregation of Revenue [Line Items]
Concentration risk percentage	18.00%	12.00%
Medical | Customer C
Disaggregation of Revenue [Line Items]
Concentration risk percentage	16.00%	19.00%
Medical | All other customers
Disaggregation of Revenue [Line Items]
Concentration risk percentage	46.00%	44.00%
Non-Medical | Customer D
Disaggregation of Revenue [Line Items]
Concentration risk percentage	19.00%	24.00%
Non-Medical | All other customers
Disaggregation of Revenue [Line Items]
Concentration risk percentage	81.00%	76.00%