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Investments and Fair Value Measurements - Additional Information (Detail)
$ in Thousands, security in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
security
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
security
Sep. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
security
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Proceeds from sale of available-for-sale securities $ 0 $ 0 $ 279,700 $ 0  
Credit or non-credit losses related to debt securities 0 0 0 0  
Available-for-sale debt securities in unrealized loss position $ 1,300,000   $ 1,300,000   $ 700,000
Number of securities in an unrealized loss position for greater than 12 months | security 0.0   0.0   0.0
Privately-held equity securities without readily determinable fair value, amount $ 163,200   $ 163,200   $ 64,900
Upward adjustments, annual amount 30,700 0 30,700 0  
Downward adjustments, annual amount 0 0 0 0  
Impairment loss, annual amount 0 0 0 0  
Upward adjustments, cumulative amount 30,700   30,700    
Equity securities received as noncash consideration     26,200 41,500  
Investment in shares 0   0   $ 0
Revenue 1,181,092 725,516 3,068,644 2,037,988  
Commercial Contract | Investment Agreement          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Revenue 2,900 9,600 13,200 42,700  
Publicly-Traded Equity Securities Held          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Unrealized gain (loss) from equity securities $ (6,000) $ (5,400) $ (2,800) $ (12,200)