Mergers and acquisitions - Summary of Integration Costs Incurred (Details) - Seaspine Holdings Corporation [Member] $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
Business Acquisition [Line Items]
Compensation-related integration costs	$ 17.7
International spine restructuring	1.3
Fee paid to financial advisor to the Merger	5.5
Professional fees / consulting fees	5.8
Product rationalization charges	6.0
Other costs to complete	1.4
Total	$ 37.7