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Subsequent Events - Additional Information (Detail)
9 Months Ended
Jan. 31, 2021
$ / shares
Subsequent Events [Abstract]  
Dividends payable, date declared Mar. 02, 2021
Dividends payable, amount per share $ 0.05
Dividends payable, nature regular quarterly dividend
Dividends payable, date of record Mar. 17, 2021
Dividends payable, date to be paid Mar. 31, 2021