Derivative Instruments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Jun. 28, 2013 Senior Notes	Jun. 28, 2013 Designated as Hedging Instrument Forward Interest Rate Lock Contract Cash Fow Hedges	Mar. 31, 2013 Designated as Hedging Instrument Forward Interest Rate Lock Contract Cash Fow Hedges contract
Derivative Instruments, Gain (Loss) [Line Items]
Forward interest rate lock contracts, number			3
Forward interest rate lock contracts, notional amount			$ 300
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		$ 7.4