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Supplemental cash flow information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Condensed Cash Flow Statements, Captions [Line Items]
Interest	$ 174.9	$ 172.9
Income taxes, net	97.3	96.3
Financing Leases	47.9	44.2
Restricted cash	461.6		$ 445.1
Proceeds from lessor debt financing	21.9	19.4
Cash and cash equivalents	1,340.3		1,395.3
Total, cash, cash equivalents, and restricted cash in the condensed consolidated statements of cash flows	1,801.9	1,638.8	1,840.4	$ 1,683.6
Argentina, Pesos | Argentina
Condensed Cash Flow Statements, Captions [Line Items]
Payments to acquire marketable securities	67.9	29.7
Proceeds from sale and maturity of marketable securities	43.3	$ 13.3
Cash and cash equivalents	12.2		104.0
Cash Held From Customers
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	215.4		232.7
Deposits liability
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	198.9		166.5
Revolving Credit Facility
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	$ 45.5		$ 44.0

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