Basis of presentation (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) $ / $	Mar. 31, 2022 USD ($)	Jun. 30, 2023 USD ($) segment $ / $	Jun. 30, 2022 USD ($) $ / $	Dec. 31, 2022 USD ($) $ / $	Dec. 31, 2021 $ / $
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of operating segments | segment			4
Change in allowance estimate			$ 9.6
Net monetary assets			2,517.3		$ 2,597.4
Cash and cash equivalents			890.1		972.0
Goodwill			1,467.7		1,450.9
Restricted cash			$ 433.5		$ 438.5
Uncollectible Receivables
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in allowance estimate	$ 0.4	$ 16.7
Argentina, Pesos | Argentina
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percent of consolidated revenue			4.00%	5.00%
Rate decrease percent	18.00%		30.00%	18.00%	42.00%
Official exchange rate | $ / $	125.0		256.4	125.0	178.6	103.1
Currency remeasurement loss			$ 18.2	$ 13.4
Net monetary assets			29.5		$ 66.2
Cash and cash equivalents			24.7		57.7
Nonmonetary assets			210.7		168.2
Goodwill			99.8		99.8
Equity securities			1.9		1.9
Debt securities			71.6		27.4
Revolving Credit Facility
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restricted cash			$ 45.7		$ 40.7