Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

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Income Taxes (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2017	Oct. 01, 2016	Sep. 30, 2016
Income Tax Examination [Line Items]
Income taxes payable	$ 18.2		$ 12.7
Undistributed foreign earnings, tax		$ 1.1
Change from separate return method
Income Tax Examination [Line Items]
Deferred tax liabilities		(22.2)
Income taxes payable		$ 11.0