Employee Benefit Plans - Components of Net Periodic Benefit Cost (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 1,012	$ 992	$ 3,036	$ 2,976
Expected return on assets	(1,226)	(1,159)	(3,678)	(3,478)
Amortization of net loss	504	409	1,512	1,227
Net periodic pension cost	290	242	870	725
SERP
Defined Benefit Plan Disclosure [Line Items]
Interest cost	185	189	555	567
Expected return on assets	0	0	0	0
Amortization of net loss	98	36	294	108
Net periodic pension cost	$ 283	$ 225	$ 849	$ 675