Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Line Items]
Unrepatriated foreign earnings	$ 0.5		$ 0.5
Estimated range of change, upper bound	4.4		4.4
Estimated range of change, lower bound	3.0		$ 3.0
Income Tax Expense Benefit Estimated Tax Rate			38.00%	34.90%
Federal Ministry of Finance, Germany [Member]
Income Tax Disclosure [Line Items]
Estimated range of change, upper bound	4.4		$ 4.4
Payment to taxing authority to pursue litigation			14.5
Unrecognized Tax Benefits	25.3		25.3
Adjustment of certain deferred tax assets	$ 5.8	$ 6.3
Scenario, Plan [Member]
Income Tax Disclosure [Line Items]
Foreign Earnings Repatriated			$ 9.4
Earliest Tax Year [Member]
Income Tax Disclosure [Line Items]
Open tax years			2000
Latest Tax Year [Member]
Income Tax Disclosure [Line Items]
Open tax years			2014