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Income Taxes - Schedule Of Deferred Tax Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Deferred tax assets:    
Intangible assets $ 342.8 $ 369.1
Capitalized research and development expenditures 172.5 4.8
Research and development credits 156.7 98.5
Share-based compensation expense 121.3 110.9
Expenses deducted in later years for tax purposes 57.5 38.4
Lease liabilities 16.6 15.2
Net operating losses 6.4 9.7
Net unrealized losses on available-for-sale securities and other 45.5 5.3
Gross deferred tax assets 919.3 651.9
Valuation allowance (168.6) (104.6)
Deferred tax assets 750.7 547.3
Deferred tax liabilities:    
Property, plant, and equipment (64.1) (79.4)
Right-of-use assets (11.8) (12.3)
Intangible assets (9.3) (9.7)
Other (1.0) (5.1)
Deferred tax liabilities 86.2 106.5
Net deferred tax assets $ 664.5 $ 440.8