Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	Sep. 29, 2012
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Estimated total remaining project expenses	$ 44.3
Remaining payments associated with acquisition	26.5
Expected project expenses due for fiscal year 2012	13.4
Expected project expenses due for fiscal year 2013	$ 30.4