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RETIREMENT PLANS (Narrative) (Details) - USD ($) | 12 Months Ended
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Mar. 31, 2018 | Apr. 01, 2017 | Apr. 02, 2016
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Benefit obligation, plan funded by company | $ 9,900,000 | $ 8,800,000 |
Reinsurance contracts asset value | 6,500,000 | 5,400,000 |
Accumulated benefit obligation | 29,600,000 | 28,700,000 |
Amount expected to be amortized from accumulated other comprehensive loss in next fiscal year | 200,000 |  |
Subsidiaries [Member] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Company contributions | 700,000 | 800,000 | $ 800,000
Savings Plus Plan [Member] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Company contributions | 5,500,000 | 5,100,000 | 5,400,000
401k Plan [Member] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Company contributions | $ 0 | $ 0 | $ 0

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- Definition Defined Benefit Plan, Benefit Obligation, Plan Funded by Company + References No definition available. + Details
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- Definition Defined Benefit Plan, Reinsurance Contracts Asset Value + References No definition available. + Details
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- Definition For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accumulated Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6503844 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount included in accumulated other comprehensive income (AOCI) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position, including gain (loss), prior service cost (credit), and transition asset (obligation). + 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 discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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