Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2024

Schedule Of Valuation And Qualifying Accounts Disclosure [Abstract]

Valuation and Qualifying Accounts

VALUATION AND QUALIFYING ACCOUNTS

Allowance for Doubtful Accounts

			Additions
(dollars in millions)	Beginning of Period		Charge (Benefit) to Expenses		(To) From Other Accounts		Deductions		End of Period
Year 2024	$	14.8	$	9.5	$	—	$	9.3	$	15.0
Year 2023	$	10.2	$	8.0	$	—	$	3.4	$	14.8
Year 2022	$	3.3	$	6.9	$	—	$	—	$	10.2

Deferred Tax Valuation Allowance

			Additions
(dollars in millions)	Beginning of Period		Charge (Benefit) to Expenses		(To) From Other Accounts			Deductions		End of Period
Year 2024	$	28.0	$	54.9	$	—		$	—	$	82.9
Year 2023	$	8.1	$	21.7	$	(1.8	)	$	—	$	28.0
Year 2022	$	2.8	$	4.2	$	1.1		$	—	$	8.1