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Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-Based Compensation Expense
Our share-based compensation expense is associated with RSUs, PSUs, and our Employee Stock Purchase Plan, or ESPP. The following table summarizes our share-based compensation expense included in our consolidated statements of operations for the periods shown:
Three Months Ended
September 30,
Nine Months Ended
September 30,
(In millions)2024202320242023
Cost of sales$3.6 $3.9 $11.4 $11.1 
Research and development13.1 11.4 38.5 34.3 
Selling, general and administrative26.7 23.7 77.2 68.5 
Total share-based compensation expense$43.4 $39.0 $127.1 $113.9