Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 13.0	$ 12.2
Rent expense			$ 9.9
Variable lease payments	1.3	1.5	1.3
Operating cash flows for amounts included in measurement of operating lease liabilities	10.3	10.8	8.3
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 5.4	$ 20.1	$ 12.7
Weighted average remaining lease term (in years)	4 years	5 years	4 years
Weighted average incremental borrowing rate (as a percentage)	3.30%	3.50%	4.60%
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease terms (in years)	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms (in years)	7 years