Earnings (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2025

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 (loss) per share:

(Dollars and shares in millions, except per share amounts)	Three Months Ended
	March 31, 2025		March 31, 2024
Numerator:
Net income (loss)	$	(1.4)	$	7.8
Denominator:
Weighted-average shares outstanding - basic	18.5		18.6
Effect of dilutive shares	—		0.1
Weighted-average shares outstanding - diluted	18.5		18.7
Basic earnings (loss) per share	$	(0.08)	$	0.42
Diluted earnings (loss) per share	$	(0.08)	$	0.42