Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 29, 2013
Pension Plan
Components of Net Periodic Benefit Cost
Interest cost	$ 4,049	$ 3,968	$ 3,738
Expected return on assets	(4,904)	(4,638)	(4,227)
Amortization of net loss	2,015	1,636	3,312
Net periodic benefit cost	1,160	966	2,823
SERP
Components of Net Periodic Benefit Cost
Interest cost	739	758	688
Expected return on assets	0	0	0
Amortization of net loss	391	143	401
Net periodic benefit cost	$ 1,130	$ 901	$ 1,089