Mergers and acquisitions - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
	Jan. 05, 2023	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Conversion of stock, shares converted	0.4163
Goodwill			$ 123,617
Net sales			746,641	$ 460,713	$ 464,479
Net loss			(151,395)	(19,749)	(38,379)
Pre tax expenses		$ 18,200	1,176	147	739
Global Spine [Member]
Business Acquisition [Line Items]
Goodwill			123,617
Net sales			631,319	$ 353,174	$ 358,963
SeaSpine Holdings Corporation [Member]
Business Acquisition [Line Items]
Direct acquisition-related costs			9,900
Net sales			258,900
Net loss			$ 84,000