Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Income tax expense (benefit) recorded in connection with remeasurement of deferred tax assets and liabilities	$ 9.5
Valuation allowance, provision	1.5	$ 5.8	$ 1.0
Income tax expense (benefit)	1.5
Undistributed earnings of foreign subsidiaries	48.7
Unrecognized tax benefits	9.7	5.7	2.1	$ 0.4
Recognized tax benefits related to penalties and interest settled for less than previously accrued		0.1
Unrecognized tax benefits, if recognized that would effect the effective rate	10.5	6.1
Income Tax expense (benefit)	1.2	$ (3.0)	$ 25.2
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	193.0
Valuation allowance, provision	1.0
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 31.5