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Fair value measurements - Additional Information (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Dec. 31, 2022
Aug. 07, 2020
Debt Instrument [Line Items]      
Business combination, contingent consideration, liability, current $ 3.4 $ 3.1  
3.875% Senior Unsecured Notes due 2028 | Senior Notes      
Debt Instrument [Line Items]      
Stated percentage 3.875% 3.875% 3.875%
Long-term debt, fair value $ 220.6 $ 225.1