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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Financial Assets Measured at Fair Value on Recurring Basis

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

			December 31, 2024																		December 31, 2023
			Fair Value						Leveling												Fair Value						Leveling
(in millions)									Level 1						Level 2												Level 1						Level 2
Cash and cash equivalents			$	233.0					$	233.0					$	—					$	251.1					$	251.1					$	—
Available-for-sale debt securities			1,582.6						—						1,582.6						1,468.0						—						1,468.0
Equity investments			124.8						124.8						—						161.9						161.9						—
			$	1,940.4					$	357.8					$	1,582.6					$	1,881.0					$	413.0					$	1,468.0

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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- References

No definition available.

+ Details

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