Quarterly report pursuant to Section 13 or 15(d)

Income Taxes ST Income Tax Payable (Details)

v3.10.0.1
Income Taxes ST Income Tax Payable (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
BlendedCorporateTaxRate   24.50%
Transition Tax Amount $ 25.1 $ 24.6
Provisional Transition Tax Obligation Current 2.0  
Transition Tax Amount [Member]    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Deferred Tax Liabilities, Deferred Expense 1.3  
Income Taxes Paid 2.0  
Increase (Decrease) in Accrued Taxes Payable 0.5  
Accrued Income Taxes, Noncurrent $ 21.1