Accounts Receivable Securitization (Details) (USD $) In Millions, unless otherwise specified	Jun. 29, 2012	Sep. 30, 2011
Transfers and Servicing [Abstract]
Receivables facility, maximum borrowing capacity prior agreement	$ 250.0
Maximum borrowing capacity receivables facility	300.0
Receivables facility, third-party costs	0.5
Outstanding borrowings	$ 253.3	$ 225.9