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Inventories (Tables)
12 Months Ended
Apr. 30, 2022
Inventory Disclosure [Abstract]  
Summary of Inventories
(Amounts in thousands)4/30/20224/24/2021
Raw materials$146,896 $112,371 
Work in process36,834 24,791 
Finished goods185,870 121,182 
FIFO inventories369,600 258,344 
Excess of FIFO over LIFO(66,409)(32,207)
Total inventories (1)
$303,191 $226,137 
(1)Increased balance due to rising costs and higher volume to support increased sales demand and manufacturing capacity.