Revenues (Disaggregated Revenues) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Net Sales	$ 237,835	$ 233,590	$ 609,631	$ 690,232
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Net Sales	227,745	224,074	582,292	661,936
Services transferred over time
Disaggregation of Revenue [Line Items]
Net Sales	10,090	9,516	27,339	28,296
Orthopedic Surgery
Disaggregation of Revenue [Line Items]
Net Sales	102,187	110,328	261,954	339,522
Orthopedic Surgery | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Net Sales	93,000	101,454	237,224	312,964
Orthopedic Surgery | Services transferred over time
Disaggregation of Revenue [Line Items]
Net Sales	9,187	8,874	24,730	26,558
General Surgery
Disaggregation of Revenue [Line Items]
Net Sales	135,648	123,262	347,677	350,710
General Surgery | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Net Sales	134,745	122,620	345,068	348,972
General Surgery | Services transferred over time
Disaggregation of Revenue [Line Items]
Net Sales	903	642	2,609	1,738
United States
Disaggregation of Revenue [Line Items]
Net Sales	134,205	128,182	340,476	374,143
United States | Orthopedic Surgery
Disaggregation of Revenue [Line Items]
Net Sales	38,913	42,530	97,339	131,120
United States | General Surgery
Disaggregation of Revenue [Line Items]
Net Sales	95,292	85,652	243,137	243,023
Americas (excluding the United States)
Disaggregation of Revenue [Line Items]
Net Sales	21,134	24,425	55,136	70,534
Americas (excluding the United States) | Orthopedic Surgery
Disaggregation of Revenue [Line Items]
Net Sales	13,767	17,069	35,152	47,890
Americas (excluding the United States) | General Surgery
Disaggregation of Revenue [Line Items]
Net Sales	7,367	7,356	19,984	22,644
Europe, Middle East & Africa
Disaggregation of Revenue [Line Items]
Net Sales	40,688	38,831	113,071	132,025
Europe, Middle East & Africa | Orthopedic Surgery
Disaggregation of Revenue [Line Items]
Net Sales	23,104	24,692	62,726	86,199
Europe, Middle East & Africa | General Surgery
Disaggregation of Revenue [Line Items]
Net Sales	17,584	14,139	50,345	45,826
Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales	41,808	42,152	100,948	113,530
Asia Pacific | Orthopedic Surgery
Disaggregation of Revenue [Line Items]
Net Sales	26,403	26,037	66,737	74,313
Asia Pacific | General Surgery
Disaggregation of Revenue [Line Items]
Net Sales	$ 15,405	$ 16,115	$ 34,211	$ 39,217