Business Segment Information - Summary of EBIDTA by Reporting Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Total EBITDA	$ 9,961	$ 12,777	$ 13,463	$ 14,614
Depreciation and amortization	(6,512)	(7,559)	(14,028)	(15,002)
Interest expense, net	(407)	(550)	(782)	(967)
Income (loss) before income taxes	3,042	4,668	(1,347)	(1,355)
Operating Segments [Member] | Global Spine [Member]
Segment Reporting Information [Line Items]
Total EBITDA	20,766	19,032	36,659	30,927
Operating Segments [Member] | Global Orthopedics [Member]
Segment Reporting Information [Line Items]
Total EBITDA	(2,422)	1,775	(5,518)	(454)
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Total EBITDA	$ (8,383)	$ (8,030)	$ (17,678)	$ (15,859)