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Pension and Postretirement Benefits (Details Textual) - USD ($) | 6 Months Ended |
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Dec. 31, 2017 | Jan. 01, 2017 | Jul. 02, 2017
Defined Benefit Plan Disclosure [Line Items] |  |  |
Proposed date the Board of Directors approved to terminate the qualified retirement plan | Dec. 31, 2017 |  |
Qualified Retirement Plan participants' vesting percentage as of the final termination date of the plan | 100.00% |  |
Termination Of Qualified Pension Plan Description | The Board of Directors has approved the termination of the Qualified Pension Plan with a proposed termination date of December 31, 2017. The termination of the Qualified Pension Plan is contingent upon receipt of an IRS determination letter that the Qualified Pension Plan was qualified upon termination and approval by the Pension Benefit Guaranty Corporation (“PBGC”). The date the termination will be approved and benefits can be distributed will not be known until we receive all required regulatory approvals. We submitted a request to the IRS for a determination letter that the Qualified Pension Plan is qualified upon termination prior to the end of the 2017 calendar year. We are still waiting for receipt of such notification from the IRS. Depending on the time receipt of IRS and PBGC approval, we intend to distribute Qualified Pension Plan assets prior to the end of the 2018 calendar year. Additionally, in connection with preparing for the termination of the Qualified Pension Plan, we have amended the plan to provide that participants are 100 percent vested in their accrued benefits as of the effective date of the plan termination, to adopt a new standard for disability benefits that will apply when the plan’s assets are distributed due to the termination, to add a lump sum distribution for employees and terminated vested participants who are not in payment status when Qualified Pension Plan assets are distributed due to the termination and to make certain other conforming amendments to the Qualified Pension Plan to comply with applicable laws that may be required by the IRS or may be deemed necessary or advisable to improve the administration of the Qualified Pension Plan or facilitate its termination and liquidation. |  |
Rabbi Trust Assets - SERP | $ 2,800,000 |  | $ 2,600,000
Postretirement plan annual benefit limit for future eligible retirees | $ 4,000 |  |
Other postretirement benefits maximum benefit period | 5 years |  |
Contributions to the qualified pension plan | $ 0 | $ 5,000,000 |
Expected additional employer contributions during remainder of fiscal 2017 | $ 3,000,000 |  |
Supplemental Employee Retirement Plan, Defined Benefit |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of participant's base salary received as Supplemental Retirement Benefits | 8.00% |  |

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- Definition Annual benefit accrual percentage of a participants' base salary and cash bonus under the Supplement Executive Retirement Plan. + References No definition available. + Details
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- Definition The maximum annual benefit amount available to each retiree for postretirement health benefits under the other postretirement defined benefit plan. + References No definition available. + Details
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- Definition The maximum benefit period, in years, available to each retiree for postretirement health benefits under the other postretirement defined benefit plan. + References No definition available. + Details
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- Definition Proposed date approved for termination of qualified retirement plan. + References No definition available. + Details
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- Definition Description of plan to terminate the qualified defined benefit pension plan. + References No definition available. + Details
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- Definition The total amount of cash and securities held by third party trustees in a rabbi trust for the payment of supplemental employee retirement benefits. + References No definition available. + Details
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- Definition The vesting percentage of accrued benefits for all retirement plan participants as of the final plan termination date under a plan amendment. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period. + References No definition available. + Details
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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- Details
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