Leases - Future Minimum Payments (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Operating Leases
Next 12 months	$ 8.8
12 to 24 months	8.6
24 to 36 months	8.0
36 to 48 months	3.9
48 to 60 months	3.2
Thereafter	11.2
Total lease payments	43.7
Less imputed interest	4.5
Total	39.2	$ 38.2
Finance Leases
Next 12 months	0.5
12 to 24 months	0.4
24 to 36 months	0.2
36 to 48 months	0.0
48 to 60 months	0.0
Thereafter	0.0
Total lease payments	1.1
Less imputed interest	0.0
Total	1.1	$ 2.6
Total
Next 12 months	9.3
12 to 24 months	9.0
24 to 36 months	8.2
36 to 48 months	3.9
48 to 60 months	3.2
Thereafter	11.2
Total lease payments	44.8
Less imputed interest	4.5
Total	$ 40.3