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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
Income Taxes |  |  |
Deferred Income Tax Liabilities, Net, Total | $ 107.3 |  | $ 107.9
Percent of pretax income |  |  |
Actual effective income tax rate (as a percent) | 24.60% | 84.80% |
Correction of the failed spin-off-leaseback accounting treatment |  |  |
Income Taxes |  |  |
Period of cumulative pre-tax loss position | 3 years |  |

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