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Leases and commitments - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Operating Leases |  |
Operating lease right-of-use assets | $ 38.4 | $ 35.4
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | Other accrued liabilities | Other accrued liabilities
Other accrued liabilities | $ 15.0 | $ 19.1
Long-term operating lease liabilities | 28.9 | 25.6
Total operating lease liabilities | $ 43.9 | $ 44.7
Finance Leases |  |
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Outsourcing assets, net | Outsourcing assets, net
Outsourcing assets, net | $ 0.0 | $ 0.1
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] | Current maturities of long-term debt | Current maturities of long-term debt
Current maturities of long-term debt | $ 0.5 | $ 0.3
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Long-term debt | Long-term debt
Long-term debt | $ 2.3 | $ 0.0
Total finance lease liabilities | $ 2.8 | $ 0.3
Weighted-Average Remaining Lease Term (in years) |  |
Operating leases | 3 years 10 months 24 days | 3 years 6 months
Finance leases | 4 years 7 months 6 days | 6 months
Weighted-Average Discount Rate |  |
Operating leases | 9.10% | 8.30%
Finance leases | 6.10% | 5.20%

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