Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)	Sep. 28, 2014	Jun. 29, 2014	Sep. 29, 2013	Jul. 01, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	$ 174,140,000	$ 158,439,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	174,140,000	158,439,000
Cash and cash equivalents	174,140,000	158,439,000	104,891,000	105,637,000
Debt Instrument, Fair Value Disclosure	155,500,000
Cash [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	144,140,000	128,439,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	144,140,000	128,439,000
Cash and cash equivalents	144,140,000	128,439,000
Money Market Funds [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	30,000,000	30,000,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	30,000,000	30,000,000
Cash and cash equivalents	$ 30,000,000	$ 30,000,000