Benefits (Details) (USD $)	12 Months Ended
	Jun. 29, 2013		Jun. 30, 2012
Defined contribution plan 401(k)
Employer matching percentage of employee contributions up to 3% of employee eligible compensation	100.00%
Maximum percentage of employee eligible compensation with 100% matching contributions by employer	3.00%
Employer matching percentage of additional employee contributions up to 5% of employee eligible compensation	50.00%
Maximum percentage of employee eligible compensation with 50% matching contributions by employer	5.00%
Defined contribution expense	$ 14,100,000		$ 13,800,000
Accumulated Postretirement Benefit Obligation [APBO]:
Funded status at end of year	(20,290,000)		(22,207,000)
Actuarial loss	(2,369,000)		1,507,000
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	0		3,100,000
Amounts Recognized in Accumulated Other Comprehensive Income:
Net actuarial loss	5,500,000		8,603,000
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	2,744,000		3,100,000
Amounts recognized in Accumulated Other Comprehensive Income	8,244,000		11,703,000
Net Periodic Postretirement Benefit Cost/(Income):
Interest cost	877,000
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	356,000
Amortization of net actuarial loss	734,000	[1]
Total net periodic postretirement benefit cost	1,967,000
Employer contributions, current period	424,000
Economic Assumptions:
Benefit obligation, discount rate			4.00%
Medical trend
Description of direction and pattern of change for assumed medical trend rate	8.5% -5%		9% -5%
Defined Benefit Plan, Assumptions Used Calculating Unrecognized Gain Loss Amortization, Average Remaining Life Expectancy	7 years 7 months 6 days
Defined Benefit Postretirement Life Insurance [Member]
Estimated future benefit payments
Assets for plan benefits included in Other Assets	3,200,000		3,000,000
Obligations included in Other Liabilities	4,800,000		4,600,000
Non-Pension Benefits [Member]
Estimated future benefit payments
2012	676,000
2013	721,000
2014	777,000
2015	834,000
2016	861,000
Thereafter	16,421,000
Total	20,290,000
Retirees and Beneficiaries [Member]
Accumulated Postretirement Benefit Obligation [APBO]:
Retirees and beneficiaries	(18,162,000)		(20,427,000)
Active Participants [Member]
Accumulated Postretirement Benefit Obligation [APBO]:
Retirees and beneficiaries	2,128,000		1,780,000
Scenario, Forecast [Member]
Net Periodic Postretirement Benefit Cost/(Income):
Interest cost	858,000
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	356,000
Amortization of net actuarial loss	457,000	[1]
Total net periodic postretirement benefit cost	1,671,000
Estimated employer contributions in next fiscal year	$ 676,000
Economic Assumptions:
Benefit obligation, discount rate	4.30%

[1] Unrecognized losses are amortized over average remaining service period of active participants of 7.6 years at June 29, 2013.