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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2014 | Jun. 30, 2015
Deferred tax assets: |  |
Foreign tax credit carryforwards | $ 136.9 |
Foreign tax credit carryforward period |  | 10 years
Foreign tax credit carryforward deferred tax assets |  |
Deferred tax assets: |  |
Additional valuation allowance | $ 7.2 |
Foreign tax credit carryforward deferred tax assets | Spin-off | Pro Forma | Minimum |  |
Deferred tax assets: |  |
Additional valuation allowance |  | $ 45.0
Foreign tax credit carryforward deferred tax assets | Spin-off | Pro Forma | Maximum |  |
Deferred tax assets: |  |
Additional valuation allowance |  | $ 65.0

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