Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Line Items]
Estimated tax rate	35.00%	34.00%
Unrepatriated foreign earnings	$ 0.7
Non-U.S. earnings that have been targeted for future repatriation	11.8
Estimated range of change, upper bound	0
Estimated range of change, lower bound	9.7
Minimum [Member]
Income Tax Disclosure [Line Items]
Open tax years	2000
Maximum [Member]
Income Tax Disclosure [Line Items]
Open tax years	2013
German Tax Authority [Member]
Income Tax Disclosure [Line Items]
Unrecognized tax benefits	24.0
Amounts of tax benefits that would affect effective tax rate if recognized	15.5
Payment to taxing authority to pursue litigation	$ 16.5