Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Income Tax Disclosure [Line Items]
Current year and prior year earnings of Company's foreign operations			$ 170.4
Foreign withholding taxes			4.0
Federal tax benefit attributable to adjustments discovered			2.2
State tax charge			$ 3.8
Estimated effective tax rate on continuing operations			27.50%	29.70%
Increase decrease in unrecognized tax benefits					$ 2.2
Discrete tax benefit			$ 2.2
Non-U.S. subsidiary [Member]
Income Tax Disclosure [Line Items]
Valuation allowance	$ 0.8	$ 0.8
German tax [Member]
Income Tax Disclosure [Line Items]
Valuation allowance	$ 1.3
Earliest Tax Year [Member]
Income Tax Disclosure [Line Items]
Open tax years			2007
Latest Tax Year [Member]
Income Tax Disclosure [Line Items]
Open tax years			2019