Fair Value Measurements (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	Sep. 29, 2012	Jun. 30, 2012
Fair Value Disclosures [Line Items]
Federal Funds rate	1.50%
Discounted cash flow of revolving line of credit	$ 11.1	$ 15.0
London Interbank Offered Rate Plus 1.5%
Fair Value Disclosures [Line Items]
London Interbank Offered Rate	1.50%
London Interbank Offered Rate Plus 2.5%
Fair Value Disclosures [Line Items]
London Interbank Offered Rate	2.50%