| 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 nine months ended December 28, 2025 and December 29, 2024: | | | | | | | | | | | | | | | | | | | | | | | | | Three months ended December 28, 2025 | | (In thousands) | Water
Treatment | | Food & Health Sciences | | Industrial Solutions | | Total | Manufactured, blended, repackaged products or equipment (1) | $ | 106,983 | | | $ | — | | | $ | 40,981 | | | $ | 147,964 | | Bulk products (2) | 12,044 | | | — | | | 11,237 | | | 23,281 | | | Nutrition | — | | | 24,579 | | | — | | | 24,579 | | | Food | — | | | 29,158 | | | — | | | 29,158 | | | Pharmaceutical | — | | | 7,322 | | | — | | | 7,322 | | | Agricultural | — | | | 8,362 | | | — | | | 8,362 | | | Other | 1,460 | | | 583 | | | 1,371 | | | 3,414 | | | Total external customer sales | $ | 120,487 | | | $ | 70,004 | | | $ | 53,589 | | | $ | 244,080 | | | | | | | | | | | Three months ended December 29, 2024 | | (In thousands) | Water
Treatment | | Food & Health Sciences | | Industrial Solutions | | Total | Manufactured, blended, repackaged products or equipment (1) | $ | 89,367 | | | $ | — | | | $ | 35,572 | | | $ | 124,939 | | Bulk products (2) | 9,136 | | | — | | | 12,100 | | | 21,236 | | | Nutrition | — | | | 25,993 | | | — | | | 25,993 | | | Food | — | | | 34,365 | | | — | | | 34,365 | | | Pharmaceutical | — | | | 6,864 | | | — | | | 6,864 | | | Agricultural | — | | | 9,834 | | | — | | | 9,834 | | | Other | 1,249 | | | 674 | | | 1,051 | | | 2,974 | | | Total external customer sales | $ | 99,752 | | | $ | 77,730 | | | $ | 48,723 | | | $ | 226,205 | | | | | | | | | | | Nine months ended December 28, 2025 | | (In thousands) | Water
Treatment | | Food & Health Sciences | | Industrial Solutions | | Total | Manufactured, blended or repackaged products (1) | $ | 380,846 | | | $ | — | | | $ | 125,766 | | | $ | 506,612 | | Bulk products (2) | 36,295 | | | — | | | 34,826 | | | 71,121 | | | Nutrition | — | | | 75,204 | | | — | | | 75,204 | | | Food | — | | | 97,906 | | | — | | | 97,906 | | | Pharmaceutical | — | | | 19,549 | | | — | | | 19,549 | | | Agricultural | — | | | 37,494 | | | — | | | 37,494 | | | Other | 3,820 | | | 1,942 | | | 4,138 | | | 9,900 | | | Total external customer sales | $ | 420,961 | | | $ | 232,095 | | | $ | 164,730 | | | $ | 817,786 | | | | | | | | | | | Nine months ended December 29, 2024 | | (In thousands) | Water
Treatment | | Food & Health Sciences | | Industrial Solutions | | Total | Manufactured, blended or repackaged products (1) | $ | 307,901 | | | $ | — | | | $ | 114,686 | | | $ | 422,587 | | Bulk products (2) | 29,809 | | | — | | | 34,874 | | | 64,683 | | | Nutrition | — | | | 78,411 | | | — | | | 78,411 | | | Food | — | | | 102,137 | | | — | | | 102,137 | | | Pharmaceutical | — | | | 18,632 | | | — | | | 18,632 | | | Agricultural | — | | | 33,133 | | | — | | | 33,133 | | | Other | 3,746 | | | 1,912 | | | 3,872 | | | 9,530 | | | Total external customer sales | $ | 341,456 | | | $ | 234,225 | | | $ | 153,432 | | | $ | 729,113 | |
(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. |