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Net Earnings Per Share (Tables)
9 Months Ended
Jan. 31, 2022
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table sets forth the computation of basic and diluted net earnings per share:
 Three Months EndedNine Months Ended
 January 31,January 31,
(in thousands, except per share amounts)2022202120222021
Numerator used in basic and diluted net earnings    
per common share:    
Net income (loss)$(49,257)$18,445 $(44,246)$57,626 
Denominator:    
Denominator for basic net earnings per common    
share - weighted-average shares16,570 16,995 16,599 16,975 
Effect of dilutive securities:    
Stock options and restricted stock units— 52 — 62 
Denominator for diluted net earnings per common    
share - weighted-average shares and assumed    
conversions16,570 17,047 16,599 17,037 
Net earnings (loss) per share    
Basic$(2.97)$1.09 $(2.67)$3.39 
Diluted$(2.97)$1.08 $(2.67)$3.38