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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Mar. 31, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Income Tax Contingency [Line Items] |  |  |  |  |
U.S. statutory rate (as a percent) |  |  |  | 35.00% |
Income Tax Expense (Benefit) | $ (6.0) |  | $ (2.2) | $ (15.7) | $ 2.4
Effective Income Tax Rate Reconciliation, Percent |  |  | 43.10% |  |
Equity in earnings of unconsolidated affiliates, net of tax | 0.0 |  | $ 6.8 | 0.0 | $ 14.1
Tax Year 2012 [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Operating Loss Carryforwards | 1.7 |  |  | 1.7 |
Tax Assessment Year 2010 to 2012 [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Income Tax Expense (Benefit) | $ 3.5 |  |  |  |
Tax Assessment Year 2007 to 2009 [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Income Tax Expense (Benefit) |  | $ 12.8 |  | $ 12.8 |

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