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Balance Sheet Details and Other Financial Information (Tables) | 6 Months Ended
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Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Short-Term Marketable Securities | Short-term marketable securities, consisting of available-for-sale debt securities, were as follows as of the dates indicated:
| June 30, 2024
(In millions) | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Market Value
Debt securities, available-for-sale: |  |  |  |  |  |  |
U.S. government agencies (1) | $ | 1,234.8 |  |  | $ | 0.1 |  |  | $ | (1.6) |  |  | $ | 1,233.3 |
Commercial paper | 497.5 |  |  | — |  |  | (0.2) |  |  | 497.3 |
Corporate debt | 451.7 |  |  | — |  |  | (0.8) |  |  | 450.9 |
Total debt securities, available-for-sale | $ | 2,184.0 |  |  | $ | 0.1 |  |  | $ | (2.6) |  |  | $ | 2,181.5 |
(1) Includes debt obligations issued by U.S. government-sponsored enterprises or U.S. government agencies.
| December 31, 2023
(In millions) | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Market Value
Debt securities, available-for-sale: |  |  |  |  |  |  |
U.S. government agencies (1) | $ | 1,611.8 |  |  | $ | 1.2 |  |  | $ | (0.5) |  |  | $ | 1,612.5 |
Commercial paper | 184.8 |  |  | — |  |  | (0.1) |  |  | 184.7 |
Corporate debt | 360.8 |  |  | 0.1 |  |  | (0.3) |  |  | 360.6 |
Total debt securities, available-for-sale | $ | 2,157.4 |  |  | $ | 1.3 |  |  | $ | (0.9) |  |  | $ | 2,157.8 |
(1) Includes debt obligations issued by U.S. government-sponsored enterprises or U.S. government agencies.
Schedule of Inventory |
(In millions) | June 30, 2024 |  | December 31, 2023
Raw materials | $ | 248.5 |  |  | $ | 319.5 |
Work-in-process | 64.8 |  |  | 30.0 |
Finished goods | 257.0 |  |  | 210.1 |
Total inventory | $ | 570.3 |  |  | $ | 559.6 |
Schedule of Prepaid and Other Current Assets |
(In millions) | June 30, 2024 |  | December 31, 2023
Prepaid expenses | $ | 69.3 |  |  | $ | 58.7 |
Prepaid inventory | 22.7 |  |  | 31.5 |
Deferred compensation plan assets | 18.3 |  |  | 15.2 |
Income tax receivables | 53.5 |  |  | 13.6 |
Other current assets | 48.4 |  |  | 49.3 |
Total prepaid and other current assets | $ | 212.2 |  |  | $ | 168.3 |
Schedule of Property and Equipment |
(In millions) | June 30, 2024 |  | December 31, 2023
Land and land improvements | $ | 45.1 |  |  | $ | 34.5 |
Building | 247.6 |  |  | 190.5 |
Furniture and fixtures | 37.1 |  |  | 36.9 |
Computer software and hardware | 71.2 |  |  | 65.8 |
Machinery and equipment | 796.6 |  |  | 683.3 |
Leasehold improvements | 283.9 |  |  | 283.4 |
Construction in progress | 284.7 |  |  | 328.1 |
Total cost | 1,766.2 |  |  | 1,622.5 |
Less: accumulated depreciation and amortization | (583.1) |  |  | (509.4) |
Total property and equipment, net | $ | 1,183.1 |  |  | $ | 1,113.1 |
Schedule of Other Assets |
Other Assets
(In millions) | June 30, 2024 |  | December 31, 2023
Long-term investments | $ | 43.6 |  |  | $ | 38.5 |
Long-term deposits | 14.2 |  |  | 14.4 |
Other assets | 25.1 |  |  | 22.1 |
Total other assets | $ | 82.9 |  |  | $ | 75.0 |
Schedule of Accounts Payable and Accrued Liabilities |
(In millions) | June 30, 2024 |  | December 31, 2023
Accounts payable trade | $ | 307.0 |  |  | $ | 276.4 |
Accrued tax, audit, and legal fees | 35.2 |  |  | 42.6 |
Accrued rebates | 1,165.3 |  |  | 950.7 |
Accrued warranty | 5.9 |  |  | 12.6 |
Income tax payable | 1.0 |  |  | 7.5 |
Deferred compensation plan liabilities | 18.3 |  |  | 15.2 |
Other accrued liabilities | 37.1 |  |  | 40.5 |
Total accounts payable and accrued liabilities | $ | 1,569.8 |  |  | $ | 1,345.5 |
Schedule of Accrued Payroll and Related Expenses |
(In millions) | June 30, 2024 |  | December 31, 2023
Accrued wages, bonus and taxes | $ | 78.0 |  |  | $ | 139.8 |
Other accrued employee benefits | 38.1 |  |  | 31.2 |
Total accrued payroll and related expenses | $ | 116.1 |  |  | $ | 171.0 |
Schedule of Other Long-Term Liabilities |
(In millions) | June 30, 2024 |  | December 31, 2023
Finance lease obligations | $ | 58.1 |  |  | $ | 58.6 |
Deferred revenue, long-term | 5.2 |  |  | 7.4 |
Asset retirement obligation | 15.8 |  |  | 15.7 |
Other tax liabilities | 44.2 |  |  | 38.7 |
Other liabilities | 4.8 |  |  | 5.2 |
Total other long-term liabilities | $ | 128.1 |  |  | $ | 125.6 |
Schedule of Other Income (Expense), Net |
| Three Months Ended June 30, |  | Six Months Ended June 30,
(In millions) | 2024 |  | 2023 |  | 2024 |  | 2023
Interest and dividend income | $ | 36.2 |  |  | $ | 37.4 |  |  | $ | 72.5 |  |  | $ | 59.7 |
Interest expense | (4.8) |  |  | (5.9) |  |  | (9.4) |  |  | (10.5) |
Other expense, net | (1.6) |  |  | (0.3) |  |  | (1.9) |  |  | (0.7) |
Total other income (expense), net | $ | 29.8 |  |  | $ | 31.2 |  |  | $ | 61.2 |  |  | $ | 48.5 |

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