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Short-term Investments - Schedule of Gross Unrealized Losses and Fair Values of Available-for-sale Investment Securities that were in Unrealized Loss Positions (Detail) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Debt Securities, Available-for-Sale [Line Items]    
Less Than 12 Months, Fair Value $ 24,166 $ 140,573
Less Than 12 Months, Unrealized Loss (188) (1,815)
12 Months or More, Fair Value 36,966 0
12 Months or More, Unrealized Loss (790) 0
Total, Fair Value 61,133 140,573
Total, Unrealized Loss (978) (1,815)
Corporate Debt Securities [Member]    
Debt Securities, Available-for-Sale [Line Items]    
Less Than 12 Months, Fair Value 19,628 129,573
Less Than 12 Months, Unrealized Loss (151) (1,769)
12 Months or More, Fair Value 36,484 0
12 Months or More, Unrealized Loss (786) 0
Total, Fair Value 56,113 129,573
Total, Unrealized Loss (937) (1,769)
Asset-Backed Securities [Member]    
Debt Securities, Available-for-Sale [Line Items]    
Less Than 12 Months, Fair Value 11,000
Less Than 12 Months, Unrealized Loss (46)
12 Months or More, Fair Value 482 0
12 Months or More, Unrealized Loss (4) 0
Total, Fair Value 482 11,000
Total, Unrealized Loss (4) (46)
Government securities [Member]    
Debt Securities, Available-for-Sale [Line Items]    
Less Than 12 Months, Fair Value 4,538 0
Less Than 12 Months, Unrealized Loss (37) 0
12 Months or More, Fair Value 0
12 Months or More, Unrealized Loss 0
Total, Fair Value 4,538 0
Total, Unrealized Loss $ (37) $ 0