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Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying amount of intangible assets

The following table summarizes the carrying amount of intangible assets as of December 31, 2024 and 2023:

	As of December 31,
	2024		2023
	(Dollars in millions)
Acquired contractual rights	$922.7		$924.1
Accumulated amortization	(392.2)		(262.0)
Finite-lived intangible assets, net	530.5		662.1
Goodwill	103.6		104.0
Intangible Assets, net	$634.1		$766.1

Schedule of estimated amortization expense

The following table summarizes the expected amortization expense for 2025 through 2029 and thereafter (Dollars in

millions):

Year ending December 31,
2025	$131.0
2026	130.9
2027	120.8
2028	113.6
2029	31.7
Thereafter	2.5
	$530.5

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- References

No definition available.

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- Definition

Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/350-30/tableOfContent

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/350-20/tableOfContent

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- Definition

Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 55
-Paragraph 40
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482640/350-30-55-40

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482665/350-30-50-2

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