v3.26.1
Leases (Lease Expense and Cash Outflows from Operating and Finance Leases) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Finance lease expense:        
Depreciation and amortization $ 1.6 $ 1.4 $ 3.4 $ 3.4
Interest expense 0.7 0.6 1.3 1.4
Total finance lease expense 2.3 2.0 4.7 4.8
Operating lease expense 30.4 28.1 62.5 56.3
Short-term lease expense 0.0 0.1 0.1 0.2
Variable lease expense 0.4 0.4 0.8 0.8
Total lease expense $ 33.1 $ 30.6 68.1 62.1
Cash paid for amounts included in the measurement of lease liabilities:        
Operating cash outflows from operating leases     44.4 39.3
Operating cash outflows from finance leases (interest component)     1.3 1.4
Financing cash outflows from finance leases (principal component)     3.7 2.8
Total cash outflows from operating and finance leases     $ 49.4 $ 43.5