Business Segment Information - Summary of EBIDTA by Reporting Segment (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total EBITDA	$ 12,601,000	$ 29,697,000	$ 32,661,000
Depreciation and amortization	(29,019,000)	(29,599,000)	(30,546,000)
Goodwill, Impairment		(11,756,000)
Interest expense, net	(1,288,000)	(1,837,000)	(2,483,000)
Income (loss) before income taxes	(17,706,000)	(13,495,000)	(368,000)
Global Spine [Member]
Segment Reporting Information [Line Items]
Goodwill, Impairment	0
Global Orthopedics [Member]
Segment Reporting Information [Line Items]
Goodwill, Impairment		(11,756,000)
Operating Segments [Member] | Global Spine [Member]
Segment Reporting Information [Line Items]
Total EBITDA	60,649,000	58,014,000	63,036,000
Operating Segments [Member] | Global Orthopedics [Member]
Segment Reporting Information [Line Items]
Total EBITDA	(4,037,000)	3,374,000	(4,993,000)
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Total EBITDA	$ (44,011,000)	$ (31,691,000)	$ (25,382,000)