Leases - Balance Sheet Classification (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Right-of-use assets	$ 52.6	$ 44.1
Operating Lease, Right-of-Use Asset, Statement of Financial Position	Other assets	Other assets
Current liability	$ 10.0	$ 10.1
Operating Lease, Liability, Current, Statement of Financial Position	Accrued expenses	Accrued expenses
Long-term liability	$ 44.3	$ 35.3
Operating Lease, Liability, Noncurrent, Statement of Financial Position	Other liabilities	Other liabilities
Total liability	$ 54.3	$ 45.4