Accrued Compensation and Benefits - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Defined benefit obligation	$ 71.9	$ 60.6
Defined benefit plan fair value of the plans' assets	58.8	51.1
Funded status of plan	(13.1)	(9.5)
AlpInvest
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	$ 1.7	$ 4.1	$ 6.1