License of Intellectual Property (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 26, 2015	Jun. 27, 2014	Jun. 26, 2015	Jun. 27, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gains on divestiture and license	$ 0.9	$ 0.9	$ 2.6	$ 14.7
Oxymorphone ER
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Upfront cash received				4.0
Contractually obligated future cash receipts				8.0
Gains on divestiture and license				$ 11.7