Fair Value Measurements

9 Months Ended

Sep. 30, 2023

The fair value hierarchy consists of the following three levels:

Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2 – Quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability.

Level 3 – Unobservable inputs that reflect our own assumptions about the assumptions that market participants would use in pricing the asset or liability when there is little, if any, market activity for the asset or liability at the measurement date.

The following table presents a summary of financial assets, which were measured at fair value on a recurring basis.


	September 30, 2023						December 31, 2022
	Fair Value		Leveling				Fair Value	Leveling
(in millions)			Level 1		Level 2					Level 1		Level 2
Cash and money market funds	$	293.7	$	293.7	$	—		$	262.9	$	262.9	$	—
Restricted cash	8.0		8.0		—			7.8		7.8		—
Commercial paper	137.4		—		137.4			156.0		—		156.0
Corporate debt securities	643.0		—		643.0			548.4		—		548.4
Securities of government-sponsored entities	475.7		—		475.7			321.4		—		321.4
Equity security investments	132.8		132.8		—			102.1		102.1		—
	$	1,690.6	$	434.5	$	1,256.1		$	1,398.6	$	372.8	$	1,025.8

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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