Leases Supplemental Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Weighted-average remaining lease term of operating leases	3 years 2 months 12 days	3 years 8 months 12 days	4 years 2 months 12 days
Weighted-average discount rate of operating leases	3.47%	3.86%	4.04%
Cash paid for operating lease liabilities	$ 29.1	$ 28.1	$ 26.9
Right-of-use assets obtained with lease liabilities	$ 10.8	$ 18.9	$ 23.5