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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
 12 Months Ended
Dec. 31, 2025
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
(Dollars in millions)
Years ended December 31, 2025, 2024 and 2023
DescriptionBalance at
Beginning
of Year		Charged to
Costs and
Expenses		Acquisition
of
Businesses		DeductionsBalance at
End of
Year
2025:
Valuation allowance for trade and notes receivable$12.9 $1.9 $— $(0.7)$14.1 
Valuation allowance for deferred tax assets6.1 4.3 — — 10.4 
2024:
Valuation allowance for trade and notes receivable10.1 3.1 — (0.3)12.9 
Valuation allowance for deferred tax assets11.7 — — (5.6)6.1 
2023:
Valuation allowance for trade and notes receivable9.5 1.1 — (0.5)10.1 
Valuation allowance for deferred tax assets8.3 3.4 — — 11.7