v3.25.2
Fair Value of Financial Instruments - Schedule of Fair Value of Financial Assets and Liabilities (Detail) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of cash and cash equivalents $ 130,322 $ 64,109
Fair value of restricted cash $ 2,703 $ 4,053
Investment, Type [Extensible Enumeration] us-gaap:MoneyMarketFundsMember us-gaap:MoneyMarketFundsMember
Fair value of short and long term investments $ 1,259,586 $ 1,711,040
Fair value of financial assets 1,409,339 1,791,819
Fair value of financial liabilities 913 584
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of cash and cash equivalents $ 130,322 $ 64,109
Investment, Type [Extensible Enumeration] us-gaap:MoneyMarketFundsMember us-gaap:MoneyMarketFundsMember
Fair value of financial assets $ 130,322 $ 64,109
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of restricted cash $ 2,703 $ 4,053
Investment, Type [Extensible Enumeration] us-gaap:MoneyMarketFundsMember us-gaap:MoneyMarketFundsMember
Fair value of financial assets $ 1,263,175 $ 1,718,301
Fair value of financial liabilities 913 584
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 15,842 9,409
Commercial Paper [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 3,715 4,941
Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 3,715 4,941
Corporate Bonds [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 287,215 284,575
Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 287,215 284,575
U.S. Government Agency Securities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 93,080 117,369
U.S. Government Agency Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 93,080 117,369
US Treasury Securities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 875,576 1,307,363
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 875,576 1,307,363
Strategic Investments [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 15,842 9,409
Strategic Investments [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of short and long term investments 15,842 9,409
Foreign Currency Derivative Liabilities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of prepaid expenses and other current assets 886  
Fair value of accrued expenses and other current liabilities 913 584
Foreign Currency Derivative Liabilities [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of prepaid expenses and other current assets 886  
Fair value of accrued expenses and other current liabilities $ 913 $ 584