Leases - Lease Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease expense	$ 2.3	$ 2.6	$ 2.6
Short-term lease expense	1.5	1.0	1.3
Cash paid for operating leases included in operating cash flows	$ 2.5	$ 2.7	$ 2.7