Income Taxes (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||||
|---|---|---|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Sep. 30, 2018 |
Jan. 01, 2018 |
Dec. 31, 2017 |
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| Income Tax Disclosure [Abstract] | |||||||
| Effective income tax rate (as a percent) | 29.60% | 32.40% | 60.70% | 29.70% | |||
| FederalCorporateTaxRate | 35.00% | 35.00% | 21.00% | 35.00% | |||
| BlendedCorporateTaxRate | 24.50% | 24.50% | 24.50% | ||||
| ProvisionalDiscreteNetTaxExpense | $ 14.3 | ||||||
| DTLProvisionalCorporateRateReductionNetBenefit | 14.9 | ||||||
| ProvisionalTransitionTaxObligation | 28.9 | ||||||
| ProvisionalTransitionTaxObligationCurrent | 2.3 | ||||||
| Accrued Income Taxes, Noncurrent | $ 26.6 | $ 26.6 | |||||
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- Definition BlendedCorporateTaxRate No definition available.
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- Definition DTLProvisionalCorporateRateReductionNetBenefit No definition available.
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- Definition FederalCorporateTaxRate No definition available.
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- Definition ProvisionalDiscreteNetTaxExpense No definition available.
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- Definition ProvisionalTransitionTaxObligation No definition available.
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- Definition ProvisionalTransitionTaxObligationCurrent No definition available.
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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, 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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