Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 02, 2023	Jul. 03, 2022
Segment Reporting Information [Line Items]
Sales	$ 251,120	$ 246,543
Gross profit	51,991	46,749
Selling, general, and administrative expenses	19,504	18,885
Operating income	32,487	27,864
Industrial [Member]
Segment Reporting Information [Line Items]
Sales	120,873	124,710
Gross profit	19,306	20,009
Selling, general, and administrative expenses	6,575	6,385
Operating income	12,731	13,624
Water Treatment [Member]
Segment Reporting Information [Line Items]
Sales	93,651	78,490
Gross profit	26,408	18,953
Selling, general, and administrative expenses	9,126	8,701
Operating income	17,282	10,252
Health and Nutrition [Member]
Segment Reporting Information [Line Items]
Sales	36,596	43,343
Gross profit	6,277	7,787
Selling, general, and administrative expenses	3,803	3,799
Operating income	$ 2,474	$ 3,988