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Reconciliation of Weighted Average Shares Outstanding (Tables)
12 Months Ended
Apr. 30, 2021
Reconciliation of Weighted Average Shares Outstanding [Abstract]  
Reconciliation of Shares used in Computation of Earnings (Loss) Per Share
A reconciliation of the shares used in the computation of earnings (loss) per share follows (shares in thousands):

   
For the Years Ended April 30,
 
 
2021
   
2020
   
2019
 
Weighted average shares outstanding
   
55,931
     
56,224
     
57,240
 
Less: Unvested restricted shares
   
(1
)
   
(15
)
   
(48
)
Shares used for basic earnings (loss) per share
   
55,930
     
56,209
     
57,192
 
Dilutive effect of unvested restricted stock units and other stock awards
   
531
     
     
648
 
Shares used for diluted earnings (loss) per share
   
56,461
     
56,209
     
57,840
 
Antidilutive options to purchase Class A common shares, restricted shares, warrants to purchase Class A common shares and contingently issuable restricted stock which are excluded from the table above
   
982
     
1,677
     
958