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Revenue (Tables) | 6 Months Ended
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Sep. 28, 2025
Disaggregation of Revenue [Abstract] |
Disaggregation of Revenue [Table Text Block] | The following tables disaggregate external customer net sales by major revenue stream as reviewed internally for the three and six months ended September 28, 2025 and September 29, 2024:
| Three months ended September 28, 2025
(In thousands) | Water Treatment |  | Food & Health Sciences |  | Industrial Solutions |  | Total
Manufactured, blended, repackaged products or equipment (1) | $ | 137,516 |  |  | $ | — |  |  | $ | 43,467 |  |  | $ | 180,983 |
Bulk products (2) | 12,283 |  |  | — |  |  | 11,745 |  |  | 24,028 |
Nutrition | — |  |  | 33,412 |  |  | — |  |  | 33,412 |
Food | — |  |  | 24,548 |  |  | — |  |  | 24,548 |
Pharmaceutical | — |  |  | 6,670 |  |  | — |  |  | 6,670 |
Agricultural | — |  |  | 7,662 |  |  | — |  |  | 7,662 |
Other | 1,109 |  |  | 622 |  |  | 1,400 |  |  | 3,131 |
Total external customer sales | $ | 150,908 |  |  | $ | 72,914 |  |  | $ | 56,612 |  |  | $ | 280,434 |
| Three months ended September 29, 2024
(In thousands) | Water Treatment |  | Food & Health Sciences |  | Industrial Solutions |  | Total
Manufactured, blended, repackaged products or equipment (1) | $ | 113,529 |  |  | $ | — |  |  | $ | 38,766 |  |  | $ | 152,295 |
Bulk products (2) | 9,753 |  |  | — |  |  | 11,100 |  |  | 20,853 |
Nutrition | — |  |  | 32,447 |  |  | — |  |  | 32,447 |
Food | — |  |  | 25,902 |  |  | — |  |  | 25,902 |
Pharmaceutical | — |  |  | 6,095 |  |  | — |  |  | 6,095 |
Agricultural | — |  |  | 6,306 |  |  | — |  |  | 6,306 |
Other | 1,246 |  |  | 652 |  |  | 1,233 |  |  | 3,131 |
Total external customer sales | $ | 124,528 |  |  | $ | 71,402 |  |  | $ | 51,099 |  |  | $ | 247,029 |
| Six months ended September 28, 2025
(In thousands) | Water Treatment |  | Food & Health Sciences |  | Industrial Solutions |  | Total
Manufactured, blended or repackaged products (1) | $ | 273,863 |  |  | $ | — |  |  | $ | 84,785 |  |  | $ | 358,648 |
Bulk products (2) | 24,251 |  |  | — |  |  | 23,589 |  |  | 47,840 |
Nutrition | — |  |  | 68,748 |  |  | — |  |  | 68,748 |
Food | — |  |  | 50,625 |  |  | — |  |  | 50,625 |
Pharmaceutical | — |  |  | 12,227 |  |  | — |  |  | 12,227 |
Agricultural | — |  |  | 29,132 |  |  | — |  |  | 29,132 |
Other | 2,360 |  |  | 1,359 |  |  | 2,767 |  |  | 6,486 |
Total external customer sales | $ | 300,474 |  |  | $ | 162,091 |  |  | $ | 111,141 |  |  | $ | 573,706 |
| Six months ended September 29, 2024
(In thousands) | Water Treatment |  | Food & Health Sciences |  | Industrial Solutions |  | Total
Manufactured, blended or repackaged products (1) | $ | 218,535 |  |  | $ | — |  |  | $ | 79,114 |  |  | $ | 297,649 |
Bulk products (2) | 20,672 |  |  | — |  |  | 22,774 |  |  | 43,446 |
Nutrition | — |  |  | 67,772 |  |  | — |  |  | 67,772 |
Food | — |  |  | 52,418 |  |  | — |  |  | 52,418 |
Pharmaceutical | — |  |  | 11,768 |  |  | — |  |  | 11,768 |
Agricultural | — |  |  | 23,299 |  |  | — |  |  | 23,299 |
Other | 2,497 |  |  | 1,238 |  |  | 2,821 |  |  | 6,556 |
Total external customer sales | $ | 241,704 |  |  | $ | 156,495 |  |  | $ | 104,709 |  |  | $ | 502,908 |
(1)This line includes our non-bulk specialty products in our Water Treatment and Industrial Solutions segments that we either manufacture, blend, repackage, resell in their original form, or direct ship to our customers in smaller quantities, and equipment and services we provide for our customers. (2)This line includes bulk products in our Water Treatment and Industrial Solutions segments that we do not modify in any way, but receive, store, and ship from our facilities, or direct ship to our customers in large quantities.

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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