Income Taxes (Details)
$ in Millions
|3 Months Ended|
Dec. 31, 2017
|Income Tax Disclosure [Abstract]|
|Tax benefit related to tax cuts and jobs act||$ 11.3|
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in Tax Rate, Deferred Tax Liability, Provisional Income Tax(Expense) Benefit
No definition available.