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Balance Sheet Details and Other Financial Information - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Condensed Financial Statements, Captions [Line Items]          
Term of debt instrument (in months)         12 months
Available-for-sale securities current $ 1,410,000,000   $ 1,410,000,000   $ 1,730,000,000
Available-for-sale securities noncurrent 76,300,000   76,300,000   $ 247,700,000
Gross realized gains (loss) on sales of short-term debt securities 0 $ 0 0 $ 0  
Cost of sales          
Condensed Financial Statements, Captions [Line Items]          
Inventory write-down $ 16,000,000.0 $ 23,300,000 $ 53,000,000.0 $ 32,700,000  
Minimum          
Condensed Financial Statements, Captions [Line Items]          
Term of debt instrument (in months)     12 months    
Maximum          
Condensed Financial Statements, Captions [Line Items]          
Term of debt instrument (in months)     18 months   18 months