Leases - Supplemental Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Liabilities
Current operating lease liability, statement of financial position [Extensible List]	Accrued liabilities	Accrued liabilities
Short term: Accrued liabilities	$ 9.7	$ 11.7
Long term: Operating lease liabilities	23.0	22.3
Total operating lease liabilities	32.7	34.0
Less: Rent incentives and deferrals	(1.6)	(1.5)
Assets
Operating lease assets	$ 31.1	$ 32.5
Lease Term and Discount Rate
Weighted-average remaining lease term	6 years 8 months 12 days
Weighted-average discount rate	2.87%