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Cash, Cash Equivalents and Investments - Effective Maturity Dates of Available-for-Sale Investments (Detail) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]    
Less than 1 Year $ 74,037  
1-2 Years 92,550  
2-3 Years 106,921  
3-4 Years 69,733  
4-5 Years 36,135  
Fair Value, Total 379,376 $ 400,854
Treasury Bills [Member]    
Debt Securities, Available-for-sale [Line Items]    
Less than 1 Year 7,412  
1-2 Years 15,421  
2-3 Years 7,010  
3-4 Years 0  
4-5 Years 0  
Fair Value, Total 29,843  
Corporate Bonds [Member]    
Debt Securities, Available-for-sale [Line Items]    
Less than 1 Year 66,625  
1-2 Years 77,129  
2-3 Years 99,911  
3-4 Years 68,109  
4-5 Years 33,577  
Fair Value, Total 345,351  
Asset-Backed Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Less than 1 Year 0  
1-2 Years 0  
2-3 Years 0  
3-4 Years 1,624  
4-5 Years 2,558  
Fair Value, Total $ 4,182