v3.24.3
Fair Value Measurements
9 Months Ended
Sep. 30, 2024
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The table below summarizes the Company's assets and liabilities which are measured at fair value on a recurring basis. The following fair value hierarchy is used to classify assets and liabilities, based on inputs to valuation techniques utilized to measure fair value:
•Level 1 - Quoted prices in active markets for identical assets or liabilities
•Level 2 - Significant other observable inputs, such as quoted market prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, or model-based valuations in which significant inputs used are observable
•Level 3 - Significant other unobservable inputs
(In millions)Fair Value Measurements at Reporting Date
As of September 30, 2024
Fair ValueLevel 1Level 2
Level 3
Assets:
Cash equivalents$934.8 $517.3 $417.5 $— 
Available-for-sale debt securities:
Corporate bonds7,767.3 — 7,767.3 — 
U.S. government and government agency obligations5,998.6 — 5,998.6 — 
Sovereign bonds66.9 — 66.9 — 
Commercial paper557.6 — 557.6 — 
Certificates of deposit403.1 — 403.1 — 
Asset-backed securities173.9 — 173.9 — 
Equity securities (unrestricted)1,232.1 1,232.1 — — 
Equity securities (restricted)(a)
76.1 76.1 — — 
Total assets
$17,210.4 $1,825.5 $15,384.9 $— 
Liabilities:
Contingent consideration
$36.7 $— $— $36.7 
As of December 31, 2023
Assets:
Cash equivalents$928.1 $6.4 $921.7 $— 
Available-for-sale debt securities:
Corporate bonds6,398.0 — 6,398.0 — 
U.S. government and government agency obligations4,833.4 — 4,833.4 — 
Sovereign bonds57.2 — 57.2 — 
Commercial paper636.8 — 636.8 — 
Certificates of deposit521.4 — 521.4 — 
Asset-backed securities87.1 — 87.1 — 
Equity securities (unrestricted)864.5 864.5 — — 
Equity securities (restricted)112.9 112.9 — — 
Total assets
$14,439.4 $983.8 $13,455.6 $— 
Liabilities:
Contingent consideration
$43.7 $— $— $43.7 
(a) Includes equity securities which are subject to transfer restrictions that expire in April 2026
In addition to the investments summarized in the table above, as of September 30, 2024 and December 31, 2023, the Company had $159.8 million and $74.3 million, respectively, in equity investments that do not have a readily determinable fair value. These investments are recorded within Other noncurrent assets. Also recorded within Other noncurrent assets as of September 30, 2024 were equity investments of $47.0 million which are measured at fair value based on Level 3 inputs; no such investments were held by the Company as of December 31, 2023.
During the three and nine months ended September 30, 2024, the Company recorded $134.5 million and $330.8 million of net unrealized gains, respectively, on equity securities in Other income (expense), net; and during the three and nine months ended September 30, 2023, the Company recorded $100.3 million and $295.9 million of net unrealized losses, respectively, on equity securities in Other income (expense), net. In addition, during the three months ended September 30, 2023, the Company recorded a write-down of $29.0 million in Other income (expense), net related to the Company's investments in private companies.
The fair value of the Company's long-term debt, which was determined based on Level 2 inputs, was estimated to be $1.577 billion and $1.528 billion as of September 30, 2024 and December 31, 2023, respectively.