Derivative Instruments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 27, 2013	Dec. 28, 2012	Dec. 27, 2013 Senior Notes	Dec. 27, 2013 Designated as Hedging Instrument Forward Interest Rate Lock Contract Cash Flow Hedges	Mar. 31, 2013 Designated as Hedging Instrument Forward Interest Rate Lock Contract Cash Flow Hedges contract
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency loss	$ 5.0	$ 0.5
Forward interest rate lock contracts, number					3
Forward interest rate lock contracts, notional amount					300.0
Term of debt instrument			10 years
Losses resulting from terminated derivatives, recorded in AOCI				7.6
Loss included within AOCI related to terminated interest rate lock contracts				$ 7.2