Allowance for Credit Losses (Tables)

6 Months Ended

Jun. 30, 2024

Credit Loss [Abstract]

Schedule of Premium Receivable, Allowance for Credit Loss

The following table presents the balances of premiums receivable, net of allowance for estimated uncollectible premiums, including expected lifetime credit losses and the changes in the allowance for the respective periods:

(in millions)	Premiums Receivable, Net of Allowance for Estimated Uncollectible Premiums		Allowance for Estimated Uncollectible Premiums
	Successor
Balance, December 31, 2023	$	230.7	$	3.0
Current period change for estimated uncollectible premiums			2.2
Write-offs of uncollectible premiums receivable			(1.6)
Balance, June 30, 2024	$	248.4	$	3.6
	Predecessor
Balance, December 31, 2022	$	292.0	$	4.7
Current period change for estimated uncollectible premiums			1.4
Balance, June 30, 2023	$	311.9	$	6.1

Schedule of Reinsurance Recoverable, Allowance for Credit Loss

Reinsurance Recoverables

The following table presents the balances of reinsurance recoverables, net of the allowance for estimated uncollectible reinsurance, including expected credit losses and changes in the allowance for the respective periods:

(in millions)	Reinsurance Recoverables, Net of Allowance for Estimated Uncollectible Reinsurance		Allowance for Estimated Uncollectible Reinsurance
	Successor
Balance, December 31, 2023	$	2,959.3	$	—
Balance, June 30, 2024	$	2,994.3	$	—
	Predecessor
Balance, December 31, 2022	$	3,029.1	$	4.7
Balance, June 30, 2023	$	2,908.2	$	4.7