Investments (Tables)

3 Months Ended

Mar. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Schedule of Investments

The Company’s investments subject to fair value measurement consist of the following:

	Cost Basis		Unrealized Gain		Fair Value
As of March 31, 2024 (Successor)
Short-term investments
Certificates of deposit	$	19.2	$	—	$	19.2
Long-term investments
Assets held in a rabbi trust	$	2.2	$	0.8	$	3.0
As of December 31, 2023 (Successor)
Short-term investments
Certificates of deposit	$	13.4	$	—	$	13.4
Long-term investments
Assets held in a rabbi trust	$	2.3	$	0.6	$	2.9