Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2020
Disaggregation of Revenue [Line Items]
Net Sales	$ 1,857,186	$ 1,744,014	$ 1,650,333
Home center retailers
Disaggregation of Revenue [Line Items]
Net Sales	890,554	848,898	768,043
Builders
Disaggregation of Revenue [Line Items]
Net Sales	731,048	673,307	668,765
Independent dealers and distributors
Disaggregation of Revenue [Line Items]
Net Sales	$ 235,584	$ 221,809	$ 213,525