Income Taxes (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Holiday [Line Items]
Share-based Payment Arrangement, Expense	$ 4.8	$ 5.2	$ 12.4	$ 19.2
Effective tax rate (benefit) provision	29.10%	16.40%	(26.50%)	27.80%
Income Tax Expense (Benefit)	$ 2.3	$ 5.0	$ 5.6	$ 11.0
Earnings (loss) before income taxes and discontinued operations	7.9	30.4	(21.1)	39.6
Other expense (income), net	$ (1.0)	0.6	(0.2)	0.1
Effective Income Tax Rate Reconciliation, Discrete Items		$ 0.2	$ (1.2)	$ 0.3
Effective Tax Rate Excluding Discrete Items	44.30%	15.80%	32.20%	28.50%
Foreign Tax Authority
Income Tax Holiday [Line Items]
Effective income tax rate reconciliation, tax holiday	$ 2.7	$ 6.5	$ 4.2	$ 14.4
Holiday benefit (usd per share)	$ 0.03	$ 0.07	$ 0.05	$ 0.16