Income taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes (in millions)	$ 26.2	$ 20.3
Effective tax rate	33.40%	53.60%