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Commitments and Contingencies - Additional Information (Detail) - USD ($)
Sep. 30, 2021
May 31, 2021
Revolving Credit Facility | Line of Credit | Credit Agreement    
Loss Contingencies [Line Items]    
Unsecured revolving credit facility   $ 100,000,000
Borrowings under Credit Agreement $ 0  
Shari Dorff    
Loss Contingencies [Line Items]    
Loss contingency $ 0