Business Segment Information - Summary of EBIDTA by Reporting Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Total EBITDA	$ 3,502	$ 1,837
Depreciation and amortization	(7,516)	(7,443)
Interest expense, net	(375)	(417)
Loss before income taxes	(4,389)	(6,023)
Operating Segments [Member] | Global Spine [Member]
Segment Reporting Information [Line Items]
Total EBITDA	15,893	11,895
Operating Segments [Member] | Global Orthopedics [Member]
Segment Reporting Information [Line Items]
Total EBITDA	(3,096)	(2,229)
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Total EBITDA	$ (9,295)	$ (7,829)