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Debt - Additional Information (Detail) - USD ($)
9 Months Ended
Feb. 16, 2018
Feb. 28, 2021
Maximum    
Debt And Receivables Securitization [Line Items]    
Debt maturity period   1 year
Unsecured Revolving Credit Facility    
Debt And Receivables Securitization [Line Items]    
Maximum borrowing capacity   $ 500,000,000
Maturity date 2023-02  
Borrowings outstanding   $ 0