Income Taxes - Net Operating Losses (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
2022-2026	$ 3.7
2027-2031	2.6
2032 and thereafter	17.4
Unlimited	49.1
Tax benefit of net operating loss carryforwards before valuation allowances	72.8	$ 74.8
Federal
Operating Loss Carryforwards [Line Items]
2022-2026	0.0
2027-2031	0.0
2032 and thereafter	0.2
Unlimited	6.4
Tax benefit of net operating loss carryforwards before valuation allowances	6.6
State
Operating Loss Carryforwards [Line Items]
2022-2026	0.0
2027-2031	0.9
2032 and thereafter	14.3
Unlimited	1.2
Tax benefit of net operating loss carryforwards before valuation allowances	16.4
Foreign
Operating Loss Carryforwards [Line Items]
2022-2026	3.7
2027-2031	1.7
2032 and thereafter	2.9
Unlimited	41.5
Tax benefit of net operating loss carryforwards before valuation allowances	$ 49.8