Tax Cuts and Jobs Act, Decrease in Deferred Tax Liability due to Transition Tax

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of state and local current and deferred income tax expense (benefit) attributable to continuing operations.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2020
Effective Income Tax Rate [Abstract]
Effective income tax rate, continuing operations	26.60%	47.90%	1.40%	26.00%
Income Tax Examination [Line Items]
State and Local Income Tax Expense (Benefit), Continuing Operations			$ 15.3
Decrease due to transition tax		$ 12.5		$ 12.5
Forecast
Income Tax Examination [Line Items]
Expiration of the statute of limitations for the assessment of taxes					$ 0.9