Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2024

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share:

(Dollars and shares in millions, except per share amounts)	2024		2023		2022
Numerator:
Net income	$	26.1	$	56.6	$	116.6
Denominator:
Weighted average shares outstanding - basic	18.6		18.6		18.8
Effect of dilutive shares	—		0.1		0.2
Weighted average shares outstanding - diluted	18.6		18.7		19.0
Basic earnings per share	$	1.40	$	3.04	$	6.21
Diluted earnings per share	$	1.40	$	3.03	$	6.15