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Income Taxes (Narrative) (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2015 | Jun. 30, 2014
Income Tax Disclosure [Line Items] |  |
Unrepatriated foreign earnings | $ 3.7 |
Estimated range of change, upper bound | 8.8 |
Estimated range of change, lower bound | $ 2.5 |
Income Tax Expense Benefit Estimated Tax Rate | 43.50% | 36.50%
Federal Ministry of Finance, Germany [Member] |  |
Income Tax Disclosure [Line Items] |  |
Estimated range of change, upper bound | $ 8.8 |
Payment to taxing authority to pursue litigation | 14.5 |
Unrecognized Tax Benefits | 25.3 |
Adjustment of certain deferred tax assets | 6.3 |
Scenario, Plan [Member] |  |
Income Tax Disclosure [Line Items] |  |
Foreign Earnings Repatriated | $ 59.4 |
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 |

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- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d)(3) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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