Lease expenses (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Lessee, Lease, Description [Line Items] | ||||
| Variable lease costs | $ 32.6 | $ 27.3 | $ 59.7 | $ 53.2 |
| Cash paid for operating leases | 108.5 | 104.5 | 230.7 | 237.5 |
| Leased assets obtained in exchange for new operating lease liabilities | 84.7 | 57.2 | 180.7 | 113.3 |
| Operating | 246.1 | 231.5 | 473.6 | 452.8 |
| Income Statement Location [Axis]: us-gaap:DirectOperatingCosts | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Operating lease expenses | 117.0 | 111.3 | 228.4 | 220.7 |
| Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Operating lease expenses | $ 3.2 | $ 3.1 | $ 6.4 | $ 6.0 |
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- Definition The aggregate direct operating costs incurred during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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