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COMMITMENTS AND CONTINGENCIES (Narrative) (Details) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2018 USD ($) | Feb. 28, 2017 USD ($) | Jul. 31, 2016 USD ($) | Apr. 30, 2013 USD ($) | Mar. 31, 2018 USD ($) union | Apr. 01, 2017 USD ($) | Apr. 02, 2016 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Rent expense |  |  |  |  | $ 6.4 | $ 6.2 | $ 6.8
Customer Claims |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss in period |  |  |  |  | 5.1 |  |
Insurance settlements receivable |  |  |  |  | 2.1 |  |
Product Recall |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss in period |  |  |  |  | 7.2 |  |
Product Recall | Customer Returns and Inventory Reserves |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss in period |  |  |  |  | 3.7 | 3.7 |
Product Recall | Customer Claims |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss in period |  |  |  |  | 8.5 | 3.4 |
Insurance settlements receivable |  |  |  |  | 5.0 | 2.9 |
Contract Termination |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Damages claimed |  | $ 4.6 |  |  |  |  |
Settlement amount |  |  |  |  | $ 2.3 |  |
Performance Guarantee |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Damages claimed |  | 2.8 |  |  |  |  |
Up-front Payment Arrangement |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Damages claimed |  | $ 1.8 |  |  |  |  |
Italian Employment Litigation |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of other represented unions | union |  |  |  |  | 3 |  |
Damages claimed |  |  |  |  | $ 4.8 |  |
Loss in period |  |  |  |  | 0.7 | $ 0.4 |
Amount accrued |  |  |  |  | $ 0.3 |  |
SOLX Arbitration |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Damages claimed |  |  | $ 17.0 |  |  |  |
Consideration paid |  |  |  | $ 24.0 |  |  |
Contingent milestone payment |  |  |  | 3.0 |  |  |
Maximum future royalty payments |  |  |  | $ 14.0 |  |  |
Royalty Term |  |  |  | 10 years |  |  |
Settlement amount | $ 0.4 |  |  |  |  |  |

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