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RECENT ACCOUNTING PRONOUNCEMENTS (Narrative) (Details) - ASU 2014-09 - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017 | Apr. 01, 2018
Revenue | Software Contracts |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Concentration percentage | 7.90% | 8.50% | 8.00% | 8.40% |
Difference between Revenue Guidance in Effect before and after Topic 606 |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Increase to retained earnings |  |  |  |  | $ 1.5

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