Leases - Balance Sheet Composition (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Operating leases:
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other noncurrent assets	Other noncurrent assets
Operating lease, right-of-use asset	$ 107.2	$ 106.6
Operating leases:
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued expenses	Accrued expenses
Current lease liabilities	$ 17.6	$ 16.7
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other noncurrent liabilities	Other noncurrent liabilities
Noncurrent lease liabilities	$ 93.4	$ 94.3
Total lease liabilities	111.0	111.0
Building
Operating leases:
Operating lease, right-of-use asset	101.0	100.8
Equipment
Operating leases:
Operating lease, right-of-use asset	$ 6.2	$ 5.8