Earnings Per Share (Tables)

3 Months Ended

Mar. 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)	Three Months Ended
	March 31, 2024		March 31, 2023
Numerator:
Net income (loss)	$	7.8	$	(3.5)
Denominator:
Weighted-average shares outstanding - basic	18.6		18.6
Effect of dilutive shares	0.1		—
Weighted-average shares outstanding - diluted	18.7		18.6
Basic earnings (loss) per share	$	0.42	$	(0.19)
Diluted earnings (loss) per share	$	0.42	$	(0.19)