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Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Share-Based Compensation Expense

Our share-based compensation expense is associated with restricted stock units, or RSUs, performance stock units, or 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 March 31,
(In millions)			2021						2020
Cost of sales			$	2.0					$	1.9
Research and development			10.4						8.2
Selling, general and administrative			15.6						13.8
Total share-based compensation expense			$	28.0					$	23.9

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- Definition

Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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