Pension and Other Postretirement Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Mar. 27, 2015	Mar. 28, 2014	Mar. 27, 2015	Mar. 28, 2014
Components of Net Periodic Benefit Cost [Abstract]
Benefit plan adjustments reclassified from accumulated other comprehensive loss	$ 542	$ 528	$ 1,545	$ 1,506
Tax on reclassified benefit plan adjustments from accumulated other comprehensive loss	322	354	917	1,060
Pension Benefits [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	120	135	359	402
Interest cost	1,215	1,357	3,661	4,068
Expected return on plan assets	(2,105)	(1,648)	(5,469)	(4,942)
Amortization of transition obligation	10	19	29	57
Amortization of net actuarial loss	607	714	1,825	2,141
Net periodic benefit cost	(153)	577	405	1,726
Expected contributions to its pension plan in 2015			6,172
Contributions made during period			5,562
Postretirement Benefits [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	8	9	23	28
Interest cost	144	165	434	494
Amortization of net actuarial loss	160	150	478	451
Net periodic benefit cost	$ 312	$ 324	$ 935	$ 973

The amount of gains or losses recognized in net periodic benefit cost.

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The amount of the transition obligation or asset recognized in net periodic benefit cost.

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The increase in the fair value of plan assets from contributions made by the employer.

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An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Return on Plan Assets

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

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-Glossary Service Cost (Component of Net Periodic Pension Cost)

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Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

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Amount after tax of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) related to pension and other postretirement benefit plans.

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Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) related to pension and other postretirement benefit plans.

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