Share capital - Equity-Based Compensation Expenses Related to Company's Equity-Based Awards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 115,608	$ 106,955	$ 94,900
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	6,587	4,690	3,471
Research, development and clinical studies
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	31,827	30,790	27,597
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	35,968	28,826	22,673
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 41,226	$ 42,649	$ 41,159