Contracts in Progress (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Cost and Billings on Uncompleted Construction Type Long Term Contracts or Programs

Costs and billings on uncompleted construction-type contracts consist of the following (in millions):

	Successor		Predecessor
	December 31, 2021		June 30, 2021		June 30, 2020
Costs incurred on contracts (from inception to completion)	$	199.4	$	185.8	$	152.5
Estimated earnings	125.5		133.2		108.9
Contracts in progress	324.9		319.0		261.4
Less: billings to date	(281.8)		(261.9)		(209.8)
Less: write-offs	—		(2.7)		—
	$	43.1	$	54.4	$	51.6

Schedule of Costs in Excess of Billings and Billings in Excess of Costs on Uncompleted Contracts

The carrying amounts related to uncompleted construction-type contracts are included in the accompanying balance sheets under the following captions (in millions):

	Successor		Predecessor
	December 31, 2021		June 30, 2021		June 30, 2020
Costs and estimated earnings in excess of billings on uncompleted contracts – current	$	56.3	$	57.2	$	59.5
Costs and estimated earnings in excess of billings on uncompleted contracts – noncurrent (1)	6.5		8.1		—
Billings in excess of costs and estimated earnings on uncompleted contracts – current (2)	(17.6)		(8.0)		(8.0)
Billings in excess of costs and estimated earnings on uncompleted contracts – noncurrent (3)	(2.1)		(2.9)		—
	$	43.1	$	54.4	$	51.5

(1)Included in other assets within the consolidated balance sheets.

(2)Included in deferred contract revenue – current within the consolidated balance sheets.

(3)Included in other liabilities within the consolidated balance sheets.