Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Net sales	$ 237,835	$ 233,590	$ 609,631	$ 690,232
Orthopedic Surgery
Segment Reporting Information [Line Items]
Net sales	102,187	110,328	261,954	339,522
General Surgery
Segment Reporting Information [Line Items]
Net sales	$ 135,648	$ 123,262	$ 347,677	$ 350,710