Quarterly report pursuant to Section 13 or 15(d)

Basic and Diluted Earnings (Loss) Per Share - Additional Information (Detail)

v3.21.2
Basic and Diluted Earnings (Loss) Per Share - Additional Information (Detail) - shares
shares in Millions
3 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Restricted Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive securities excluded from computation of diluted earnings (loss) per share, shares 1.4 1.7