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Finance and operating leases - Supplemental balance sheet information (Details) | Dec. 31, 2024 | Dec. 31, 2023
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Weighted-average remaining lease term (in years): |  |
Finance leases | 3 years 6 months | 2 years 7 months 6 days
Operating leases | 9 years 10 months 24 days | 10 years 3 months 18 days
Weighted-average discount rate: |  |
Finance leases | 5.65% | 5.19%
Operating leases | 5.02% | 4.59%

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