Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Line Items]
Net operating loss carryforwards, deferred tax assets	$ 80.7	$ 82.1
Unrecognized tax benefits, interest and penalties, income tax expense	(0.3)	1.4	$ 0.5
Unrecognized tax benefits, accrued interest and penalties	2.3	2.6
Unrecognized tax benefits	23.7
State
Income Taxes [Line Items]
Net operating loss carryforwards, deferred tax assets	18.6	15.7
Foreign
Income Taxes [Line Items]
Net operating loss carryforwards, deferred tax assets	57.7	66.0
Federal
Income Taxes [Line Items]
Net operating loss carryforwards, deferred tax assets	$ 2.9	$ 0.1