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Organization and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
shares in Millions
1 Months Ended 3 Months Ended
Mar. 31, 2023
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Organization And Summary Of Significant Accounting Policies [Line Items]        
Cash and investments in marketable securities $ 456,827,000 $ 456,827,000   $ 504,977,000
Accounts receivable, credit loss expense (reversal)   $ 0 $ 0  
Stock Options, RSUs And PSUs        
Organization And Summary Of Significant Accounting Policies [Line Items]        
Potentially dilutive securities (in shares)   22.8 22.3  
Employee Severance | 2023 Restructuring Plan        
Organization And Summary Of Significant Accounting Policies [Line Items]        
Workforce termination, percentage 60.00%