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Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 29, 2019 | Dec. 30, 2018 | Dec. 29, 2019 | Dec. 30, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 120,406 | $ 128,151 | $ 407,785 | $ 423,275
Bulk / Distributed specialty products [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 35,081 | 43,868 | 119,045 | 146,216
Manufactured, blended or repackaged products [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 84,016 | 82,674 | 284,886 | 272,558
Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,309 | 1,609 | 3,854 | 4,501
Industrial [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 63,018 | 69,026 | 206,433 | 212,446
Industrial [Member] | Bulk / Distributed specialty products [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 11,615 | 15,740 | 38,405 | 45,983
Industrial [Member] | Manufactured, blended or repackaged products [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 50,547 | 52,130 | 165,447 | 163,366
Industrial [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 856 | 1,156 | 2,581 | 3,097
Water Treatment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 34,890 | 32,740 | 124,010 | 116,322
Water Treatment [Member] | Bulk / Distributed specialty products [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 4,280 | 5,195 | 13,959 | 16,999
Water Treatment [Member] | Manufactured, blended or repackaged products [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 30,251 | 27,189 | 108,888 | 98,153
Water Treatment [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 359 | 356 | 1,163 | 1,170
Health and Nutrition [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 22,498 | 26,385 | 77,342 | 94,507
Health and Nutrition [Member] | Bulk / Distributed specialty products [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 19,186 | 22,933 | 66,681 | 83,234
Health and Nutrition [Member] | Manufactured, blended or repackaged products [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,218 | 3,355 | 10,551 | 11,039
Health and Nutrition [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 94 | $ 97 | $ 110 | $ 234

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