License of Intellectual Property (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 28, 2014	Mar. 29, 2013	Mar. 28, 2014	Mar. 29, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gains on divestiture and license	$ 0.9	$ 0.7	$ 13.8	$ 1.4
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