Earnings Per Share (Tables)

9 Months Ended

Sep. 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 September 30,				Nine Months Ended September 30,
	2025		2024		2025		2024
Numerator:
Net income attributable to controlling interests	$	15.1	$	16.9	$	45.3	$	42.5
Denominator:
Weighted-average shares of common stock outstanding—basic	35,806,742		37,070,795		36,354,715		37,891,015
Potential shares of common stock:
Restricted stock units	39,879		22,449		25,193		17,803
Employee stock options	—		700,920		—		676,254
Weighted-average shares of common stock outstanding—diluted	35,846,621		37,794,164		36,379,908		38,585,072
Earnings per share of common stock attributable to controlling interests:
Basic	$	0.42	$	0.46	$	1.25	$	1.12
Diluted	$	0.42	$	0.45	$	1.25	$	1.10