Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2025

Earnings Per Share [Abstract]

Schedule of Calculation of Pro Forma Basic and Diluted Earnings Per Share

The calculation of basic and diluted earnings per share of common stock is as follows (dollars in millions, except per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
Numerator:
Net income attributable to controlling interests	$	10.1	$	11.0	$	30.2	$	25.6
Denominator:
Weighted-average shares of common stock outstanding—basic	35,912,023		37,547,741		36,633,243		38,305,631
Potential shares of common stock:
Restricted stock units	17,639		13,613		17,849		15,481
Employee stock options	—		677,266		—		663,918
Weighted-average shares of common stock outstanding—diluted	35,929,662		38,238,620		36,651,092		38,985,030
Earnings per share of common stock attributable to controlling interests:
Basic	$	0.28	$	0.29	$	0.82	$	0.67
Diluted	$	0.28	$	0.29	$	0.82	$	0.66