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Balance Sheet Details and Other Financial Information
 9 Months Ended
Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Balance Sheet Details and Other Financial Information
3. Balance Sheet Details and Other Financial Information
Short-Term Marketable Securities
Our available-for-sale debt securities were as follows as of the dates indicated:
September 30, 2025
(In millions)Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Estimated
Market
Value
Debt securities, available-for-sale:
U.S. government agencies (1)
$648.0 $0.7 $(0.1)$648.6 
Commercial paper172.3 — (0.1)172.2 
Corporate debt664.5 1.1 — 665.6 
Total debt securities, available-for-sale$1,484.8 $1.8 $(0.2)$1,486.4 
(1) Includes debt obligations issued by U.S. government-sponsored enterprises or U.S. government agencies.
December 31, 2024
(In millions)Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Estimated
Market
Value
Debt securities, available-for-sale:
U.S. government agencies (1)
$1,149.4 $1.3 $(0.6)$1,150.1 
Commercial paper312.2 — (0.1)312.1 
Corporate debt511.1 0.4 (0.4)511.1 
Total debt securities, available-for-sale$1,972.7 $1.7 $(1.1)$1,973.3 
(1) Includes debt obligations issued by U.S. government-sponsored enterprises or U.S. government agencies.
As of September 30, 2025, the estimated market values of our short-term debt securities with contractual maturities up to 12 months and up to 18 months were $1.41 billion and $76.3 million, respectively. As of December 31, 2024, the estimated market values of our short-term debt securities with contractual maturities up to 12 months and up to 18 months were $1.73 billion and $247.7 million, respectively. Gross realized gains and losses on sales of our short-term debt securities for the three and nine months ended September 30, 2025 and September 30, 2024 were not significant.
We periodically review our portfolio of debt securities to determine if any investment is impaired due to credit loss or other potential valuation concerns. For debt securities where the fair value of the investment is less than the amortized cost basis, we have assessed at the individual security level for various quantitative factors including, but not limited to, the nature of the investments, changes in credit ratings, interest rate fluctuations, industry analyst reports, and the severity of impairment. Unrealized losses on available-for-sale debt securities at September 30, 2025 were primarily due to changes in interest rates, including market credit spreads, and not due to increased credit risks associated with specific securities. Accordingly, we have not recorded an allowance for credit losses. We do not intend to sell these investments and it is not more likely than not that we will be required to sell the investments before recovery of their amortized cost bases, which may be at maturity.
Inventory
(In millions)September 30, 2025December 31, 2024
Raw materials$266.0 $327.1 
Work-in-process78.6 28.1 
Finished goods259.5 187.4 
Total inventory$604.1 $542.6 
We recorded excess and obsolete inventory charges of $16.0 million and $23.3 million, during the three months ended September 30, 2025 and 2024, respectively, and $53.0 million and $32.7 million during the nine months ended September 30, 2025 and 2024, respectively. These charges are recorded in cost of sales and reflect reserves established through our ongoing evaluation of quality control data, forecasted demand, and the continued improvement and innovation of our products.
Prepaid and Other Current Assets
(In millions)September 30, 2025December 31, 2024
Prepaid expenses$68.9 $87.5 
Deferred compensation plan assets20.5 18.6 
Income tax receivables48.6 27.9 
Indirect tax receivables
11.2 10.6 
Other current assets34.5 29.1 
Total prepaid and other current assets$183.7 $173.7 
Property and Equipment
(In millions)September 30, 2025December 31, 2024
Building$310.5 $291.0 
Computer software and hardware85.9 76.6 
Furniture and fixtures40.3 40.2 
Land and land improvements56.5 53.1 
Leasehold improvements296.5 293.8 
Machinery and equipment999.4 908.9 
Construction in progress 491.7 354.6 
Total cost2,280.8 2,018.2 
Less: accumulated depreciation and amortization
(809.5)(678.3)
Total property and equipment, net$1,471.3 $1,339.9 
Other Assets
(In millions)September 30, 2025December 31, 2024
Non-marketable equity securities
$216.9 $119.3 
Long-term deposits16.8 13.8 
Other assets42.8 39.9 
Total other assets$276.5 $173.0 
Accounts Payable and Accrued Liabilities
(In millions)
September 30, 2025December 31, 2024
Accounts payable trade$451.5 $345.3 
Accrued rebates 1,373.3 1,135.9 
Accrued tax, audit, and legal fees21.0 38.4 
Accrued warranty17.3 5.9 
Deferred compensation plan liabilities20.5 18.6 
Income tax payable
6.8 3.9 
Other accrued liabilities 42.0 37.1 
Total accounts payable and accrued liabilities$1,932.4 $1,585.1 
Accrued Payroll and Related Expenses
(In millions)September 30, 2025December 31, 2024
Accrued wages, bonus and taxes$141.9 $74.5 
Other accrued employee benefits28.3 37.5 
Total accrued payroll and related expenses$170.2 $112.0 
Other Long-Term Liabilities
(In millions)September 30, 2025December 31, 2024
Asset retirement obligation$17.6 $17.0 
Finance lease obligations
54.6 58.5 
Other tax liabilities49.5 44.8 
Other liabilities25.7 27.6 
Total other long-term liabilities$147.4 $147.9 
Other Income, Net
Three Months Ended
September 30,		Nine Months Ended
September 30,
(In millions)2025202420252024
Interest and dividend income
$32.7 $32.0 $89.2 $104.5 
Interest expense
(4.7)(4.7)(14.1)(14.1)
Net gains (losses) on equity investments82.7 0.4 78.1 (1.4)
Other income (expense), net(0.9)(2.3)5.7 (2.4)
Total other income, net
$109.8 $25.4 $158.9 $86.6