Commitments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Dec. 25, 2011
Commitments [Line Items]
Number of operating leases	2
Approximate operating lease term, years	7
Operating lease purchase option notification period, days	30
Operating lease collateral, maximum	$ 164.9
Operating lease residual value of guarantee, maximum	141.7
Maximum percentage of aggregate investment value guaranteed	100.00%
Fair value of residual value guarantee at lease inception	0.6
Unamortized portion of the fair value of residual value guarantee at lease inception	0.2
Fremont And Livermore Lease [Member]
Commitments [Line Items]
Number of operating leases	4
Operating lease collateral, maximum	$ 164.9