Business Segment Information - Summary of EBIDTA by Reporting Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Total EBITDA	$ (1,525)	$ 5,049	$ 11,938	$ 19,663
Depreciation and amortization	(7,570)	(7,151)	(21,598)	(22,153)
Interest expense, net	(277)	(433)	(1,059)	(1,400)
Loss before income taxes	(9,372)	(2,535)	(10,719)	(3,890)
Operating Segments [Member] | Global Spine [Member]
Segment Reporting Information [Line Items]
Total EBITDA	10,116	13,908	46,775	44,835
Operating Segments [Member] | Global Orthopedics [Member]
Segment Reporting Information [Line Items]
Total EBITDA	(473)	(196)	(5,991)	(650)
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Total EBITDA	$ (11,168)	$ (8,663)	$ (28,846)	$ (24,522)