Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Summary of Assets and Liabilities Measured at Fair Value

The following table summarizes the financial assets and liabilities of the Company that are measured at fair value on a recurring basis (in millions):

Successor
	Fair Value Measurements at December 31, 2023
	Level 1		Level 2		Level 3
Assets
Cash, cash equivalents, and restricted cash (Note 13)	$	130.5	$	—	$	—
Discretionary retirement plan (Note 14)	$	4.0	$	1.0	$	—
Accrued interest receivable on Cross-Currency Rate Swaps (Note 19)	$	—	$	0.1	$	—
Interest Rate Swap (Note 19)	$	—	$	0.1	$	—
Liabilities
Discretionary retirement plan (Note 14)	$	4.0	$	1.0	$	—
Public warrants	$	38.1	$	—	$	—
Private placement warrants	$	—	$	17.3	$	—
Cross-Currency Rate Swaps (Note 19)	$	—	$	23.3	$	—
	Fair Value Measurements at December 31, 2022
	Level 1		Level 2		Level 3
Assets
Cash, cash equivalents, and restricted cash (Note 13)	$	75.0	$	—	$	—
Discretionary retirement plan (Note 14)	$	3.1	$	0.9	$	—
Accrued interest receivable on Cross-Currency Rate Swaps (Note 19)	$	—	$	0.1	$	—
Liabilities
Discretionary retirement plan (Note 14)	$	3.1	$	0.9	$	—
Public warrants	$	21.0	$	—	$	—
Private placement warrants	$	—	$	9.5	$	—
Cross-Currency Rate Swaps (Note 19)	$	—	$	12.9	$	—