Segment Information (Reconciliation of Revenue from Segments to Consolidated) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2020	Sep. 27, 2019	Oct. 02, 2020	Sep. 27, 2019
Segment Reporting, Revenue Reconciling Item [Line Items]
Total sales from continuing operations	$ 235,942	$ 303,587	$ 804,483	$ 932,457
Operating Segments | Medical
Segment Reporting, Revenue Reconciling Item [Line Items]
Total sales from continuing operations	227,684	289,424	777,330	888,028
Operating Segments | Medical | Cardio & Vascular
Segment Reporting, Revenue Reconciling Item [Line Items]
Total sales from continuing operations	124,596	148,581	432,885	451,552
Operating Segments | Medical | Cardiac & Neuromodulation
Segment Reporting, Revenue Reconciling Item [Line Items]
Total sales from continuing operations	72,909	106,533	252,404	337,932
Operating Segments | Medical | Advanced Surgical, Orthopedics & Portable Medical
Segment Reporting, Revenue Reconciling Item [Line Items]
Total sales from continuing operations	30,179	34,310	92,041	98,544
Operating Segments | Non-Medical
Segment Reporting, Revenue Reconciling Item [Line Items]
Total sales from continuing operations	$ 8,258	$ 14,163	$ 27,153	$ 44,429