Income Taxes Income Tax - Unrecognized tax benefits additional information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Line Items]
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 17.1
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	5.9	$ 4.9
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	1.0	$ 0.9	$ 0.6
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 1.9
Domestic Tax Authority
Income Taxes [Line Items]
Open Tax Year	2017
State and Local Jurisdiction
Income Taxes [Line Items]
Open Tax Year	2017
Foreign Tax Authority
Income Taxes [Line Items]
Open Tax Year	2015