Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Apr. 02, 2023	Apr. 03, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 919,162	$ 935,098	$ 774,541
Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenues	409,465	470,760	386,938
Water Treatment [Member]
Disaggregation of Revenue [Line Items]
Revenues	363,289	304,925	228,133
Health and Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues	146,408	159,413	159,470
Manufactured, blended or repackaged products [Member]
Disaggregation of Revenue [Line Items]
Revenues	709,400	703,635	558,554
Manufactured, blended or repackaged products [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenues	345,837	383,612	318,514
Manufactured, blended or repackaged products [Member] | Water Treatment [Member]
Disaggregation of Revenue [Line Items]
Revenues	327,188	271,448	205,350
Manufactured, blended or repackaged products [Member] | Health and Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues	36,375	48,575	34,690
Distributed specialty products
Disaggregation of Revenue [Line Items]
Revenues	108,789	109,468	124,312
Distributed specialty products | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Distributed specialty products | Water Treatment [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Distributed specialty products | Health and Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues	108,789	109,468	124,312
Bulk products [Member]
Disaggregation of Revenue [Line Items]
Revenues	88,069	105,475	81,654
Bulk products [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenues	55,720	77,479	61,443
Bulk products [Member] | Water Treatment [Member]
Disaggregation of Revenue [Line Items]
Revenues	32,349	27,996	20,211
Bulk products [Member] | Health and Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	12,904	16,520	10,021
Other [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenues	7,908	9,669	6,981
Other [Member] | Water Treatment [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,752	5,481	2,572
Other [Member] | Health and Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 1,244	$ 1,370	$ 468