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Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2019	Mar. 31, 2018	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2012
Income Tax Examination [Line Items]
Income tax expense	$ 6.8	$ 12.2			$ 13.7	$ 38.1
Income before income tax	$ 25.6	$ 40.2			$ 45.9	$ 101.4
Effective Income Tax Rate Reconciliation, Percent	26.60%	30.30%			29.80%	37.60%
Deferred Federal, State and Local, Tax Expense (Benefit)						$ 0.8
State and Local Jurisdiction | Minimum
Income Tax Examination [Line Items]
Statutes of limitation, period					2 years
State and Local Jurisdiction | Maximum
Income Tax Examination [Line Items]
Statutes of limitation, period					5 years
Domestic Tax Authority | Internal Revenue Service (IRS) | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2016
Foreign Tax Authority | Minimum
Income Tax Examination [Line Items]
Statutes of limitation, period					2 years
Foreign Tax Authority | Maximum
Income Tax Examination [Line Items]
Statutes of limitation, period					5 years
Foreign Tax Authority | Australian Taxation Office | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2016
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil
Income Tax Examination [Line Items]
Income tax expense		$ 1.6
Income Tax Examination, Interest Expense	$ 0.1	$ 0.3			$ 0.3	$ 0.9
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2015
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Tax Year 2007 to 2012
Income Tax Examination [Line Items]
Unrecognized Tax Benefits							$ 44.5
Income Tax Contingency, Potential Assessment, Acquisition, Fair Value of Liabilities Accrued							$ 43.3
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Tax Year 2008 to 2010
Income Tax Examination [Line Items]
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	$ 1.2		$ 5.6
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Tax Year 2011
Income Tax Examination [Line Items]
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount				$ 5.6
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Minimum
Income Tax Examination [Line Items]
Penalty rate	75.00%				75.00%
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Maximum | Tax Year 2007
Income Tax Examination [Line Items]
Penalty rate	150.00%				150.00%
Foreign Tax Authority | Canada Revenue Agency | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2016
Foreign Tax Authority | Federal Ministry of Finance, Germany | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2015
Foreign Tax Authority | Swedish Tax Agency (Skatteverket) | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2015
Foreign Tax Authority | Her Majesty's Revenue and Customs (HMRC) | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2018
Other Noncurrent Liabilities | Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Tax Year 2007 to 2010
Income Tax Examination [Line Items]
Unrecognized Tax Benefits	$ 26.1				$ 26.1

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