Commitments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Dec. 23, 2012 Y D
Commitments [Line Items]
Number of operating leases	2
Approximate Operating Lease term, years	7
Operating Leases expiration year	2015-01
Operating Lease purchase option notification period, days	30
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 guarantees at lease inception	0.1
Standby Letters of Credit
Commitments [Line Items]
Guarantee Obligation Maximum Exposure	21.4
Fremont And Livermore Lease
Commitments [Line Items]
Number of operating leases	4
Guarantee Obligation Maximum Exposure	$ 164.9