Merger and acquisitions - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended
	Jan. 05, 2023	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Business Acquisition [Line Items]
Conversion of stock, shares converted	0.4163
Goodwill		$ 202,711		$ 71,317
Pre tax expense		16,900
Net sales		175,204	$ 106,418
Net loss		(60,938)	(4,460)
SeaSpine Holdings Corporation [Member]
Business Acquisition [Line Items]
Goodwill	$ 131,394
Acquisition-related costs		6,500
Net sales		60,900
Net loss		(27,900)
Global Spine [Member]
Business Acquisition [Line Items]
Goodwill	$ 131,400
Net sales		$ 149,206	$ 82,655