Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Expenses under operating leases	$ 18.0	$ 17.8	$ 20.2
Expenses under finance leases	2.3	3.0	3.1
Variable lease costs	$ 2.5	$ 3.0	$ 3.4