Leases - Balance Sheet Composition (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Right-of-Use (“ROU”) Assets:
Operating lease, right-of-use asset	$ 112.8	$ 110.0
Lease Liabilities:
Operating lease, liability, current, statement of financial position [Extensible List]	Accrued expenses	Accrued expenses
Current lease liabilities	$ 21.0	$ 21.6
Operating lease, liability, noncurrent, statement of financial position [Extensible List]	Other noncurrent liabilities	Other noncurrent liabilities
Noncurrent lease liabilities	$ 96.9	$ 96.6
Total lease liabilities	117.9	118.2
Building
Right-of-Use (“ROU”) Assets:
Operating lease, right-of-use asset	106.3	104.4
Equipment
Right-of-Use (“ROU”) Assets:
Operating lease, right-of-use asset	$ 6.5	$ 5.6