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Debt - Additional Information (Detail) - Unsecured Revolving Credit Facility - USD ($)
3 Months Ended
Aug. 20, 2021
Feb. 16, 2018
Aug. 31, 2021
Debt And Receivables Securitization [Line Items]      
Maximum borrowing capacity     $ 500,000,000
Maturity date Aug. 20, 2026 Feb. 16, 2023  
Line of credit facility, description     We maintain a $500,000,000 multi-year revolving credit facility (the “Credit Facility”) with a group of lenders.  On August 20, 2021, the Company amended and restated the Credit Facility, extending the final maturity from February 16, 2023 to August 20, 2026 while keeping in place the $500,000,000 aggregate commitments under the Credit Facility. Borrowings under the Credit Facility have maturities of up to one year.  We have the option to borrow at rates equal to an applicable margin over the Daily LIBOR Rate, the Prime Rate of PNC Bank, National Association or the Overnight Bank Funding Rate.
Borrowings outstanding     $ 0
Maximum      
Debt And Receivables Securitization [Line Items]      
Debt maturity period     1 year