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Stockholders' Equity Dividends (Details)
3 Months Ended
Jul. 31, 2021
$ / shares
July 2021 dividend payment  
Class of Stock [Line Items]  
Dividends Payable, Date Declared, Month and Year May 27, 2021
Dividends Payable, Date of Record Jun. 08, 2021
Dividends Payable, Date to be Paid Jul. 01, 2021
Common Stock, Dividends, Per Share, Declared $ 0.1795
October 2021 dividend payment  
Class of Stock [Line Items]  
Dividends Payable, Date Declared, Month and Year Jul. 22, 2021
Dividends Payable, Date of Record Sep. 03, 2021
Dividends Payable, Date to be Paid Oct. 01, 2021
Common Stock, Dividends, Per Share, Declared $ 0.1795