Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 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 (in shares)	35,912,023	37,547,741	36,633,243	38,305,631
Potential shares of common stock:
Weighted-average shares of common stock outstanding—diluted (in shares)	35,929,662	38,238,620	36,651,092	38,985,030
Earnings per share of common stock attributable to controlling interests:
Basic (in dollars per share)	$ 0.28	$ 0.29	$ 0.82	$ 0.67
Diluted (in dollars per share)	$ 0.28	$ 0.29	$ 0.82	$ 0.66
Restricted stock units
Potential shares of common stock:
Restricted stock units/Employee stock options (in shares)	17,639	13,613	17,849	15,481
Employee stock options
Potential shares of common stock:
Restricted stock units/Employee stock options (in shares)	0	677,266	0	663,918