Income Taxes Effective tax rate (Details) - USD ($) $ in Millions |
3 Months Ended | |
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Mar. 31, 2018 |
Mar. 31, 2017 |
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Income Tax Disclosure [Abstract] | ||
Effective Income Tax Rate | (28.00%) | (22.00%) |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 35.00% |
Income Tax Expense (Benefit) | $ 5.7 | |
Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options | $ 3.4 | $ 8.3 |
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of tax benefit from exercise of stock options granted under share-based compensation arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of other income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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