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Cash and Investments in Marketable Securities - Portfolio of Cash and Investments in Marketable Securities (Detail) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortized Cost $ 219,902  
Gross Unrealized Gains 50  
Gross Unrealized Losses (26)  
Fair Value 219,926 $ 229,253
Cash 11,350 9,822
Total cash and investments in marketable securities 270,208 269,095
Corporate notes and bonds | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortized Cost 70,569  
Gross Unrealized Gains 24  
Gross Unrealized Losses (10)  
Fair Value 70,583 109,711
Corporate commercial paper | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortized Cost 149,333  
Gross Unrealized Gains 26  
Gross Unrealized Losses (16)  
Fair Value 149,343 119,542
Money market funds | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments in marketable securities 24,717 15,993
Certificates of deposit | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments in marketable securities $ 14,215 $ 14,027