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Financial Instruments and Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2025

Fair Value Disclosures [Abstract]

Gains (losses) recognized related to equity investments

			Three Months Ended March 31,
			2025						2024
Net losses recognized during the period on equity securities			$	(11.5)					$	(0.4)
Less: Net gains (losses) recognized during the period on equity securities sold during the period			—						—
Unrealized losses recognized during the reporting period on equity securities still held at the reporting date			$	(11.5)					$	(0.4)

Summary Of Carrying Values And Fair Values Of Fixed Rate Debt

A summary of the aggregate carrying values and fair values of our senior unsecured notes is as follows:

			March 31, 2025						December 31, 2024
Carrying value			$	3,278.2					$	2,782.1
Fair value			$	3,103.3					$	2,578.6

Assets Measured and Recorded At Fair Value On A Nonrecurring Basis

The following table presents assets measured and recorded at fair value on a nonrecurring basis during the three months ended March 31, 2025 and 2024:

						2025												2024
Description						Fair Value Measurements Using Significant Unobservable Inputs (Level 3)						Gain/(Loss)						Fair Value Measurements Using Significant Unobservable Inputs (Level 3)						Gain/(Loss)
Long-lived assets held and used						$	—					$	(0.2)					$	—					$	(1.1)

X

- Definition

Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 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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X

- Definition

Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-11

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- References

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- Definition

Tabular disclosure of realized and unrealized gain (loss) on investment in security.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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