Income Taxes (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Dec. 31, 2014 |
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| Income Tax Disclosure [Abstract] | |||||
| Effective tax rates | 35.00% | 39.00% | 37.00% | 40.00% | |
| Gross unrecognized tax benefits | $ 38.1 | $ 38.1 | $ 34.8 | ||
| Reduction in provision for income taxes due to impact of effective tax rate | 31.5 | 31.5 | |||
| Gross interest and penalties accrued | 0.4 | 0.4 | |||
| Deferred tax assets classified as other current assets | 15.8 | 15.8 | 13.4 | ||
| Deferred tax assets classified as other non-current assets | 145.7 | 145.7 | $ 106.9 | ||
| Income tax benefits attributable to the exercise of employee stock options recorded directly to Additional paid-in-capital | $ 39.1 | $ 14.6 | $ 67.9 | $ 47.1 | |
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- Definition Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, netted by jurisdiction and classified as current. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, netted by jurisdiction and classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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- References No definition available.
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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