Pension and Other Postretirement Benefit Plans (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Components of net periodic benefit cost [Abstract]
Reclassified benefit plan adjustments from accumulated other comprehensive loss	$ 676,000	$ 418,000	$ 1,996,000	$ 1,303,000
Tax on reclassified benefit plan adjustments from accumulated other comprehensive loss	376,000	240,000	1,160,000	747,000
Pension Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	88,000	53,000	257,000	152,000
Interest cost	1,334,000	1,516,000	3,996,000	4,543,000
Expected return on plan assets	(1,598,000)	(1,927,000)	(4,785,000)	(5,775,000)
Amortization of transition obligation	9,000	0	27,000	0
Amortization of net loss	845,000	580,000	2,536,000	1,740,000
Net periodic benefit cost	678,000	222,000	2,031,000	660,000
Expected contribution to its pension plan in 2013	4,224,000		4,224,000
Contributions made during period			3,633,000
Postretirement Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	8,000	10,000	25,000	31,000
Interest cost	191,000	245,000	574,000	738,000
Amortization of net loss	198,000	106,000	594,000	316,000
Net periodic benefit cost	$ 397,000	$ 361,000	$ 1,193,000	$ 1,085,000