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Leases Lease Narrative (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Apr. 30, 2021	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Leased Assets [Line Items]
Contract items	$ 3.9	$ (1.7)	$ 0.0		$ 4.4
DIP facility fees	(0.5)	0.0	0.0		11.5
Cash paid for lease liabilities	$ 7.1	$ 11.7	$ 14.0		23.5
Certain rejected office leases [Member]
Operating Leased Assets [Line Items]
DIP facility fees				$ (9.8)
Corporate Office [Member]
Operating Leased Assets [Line Items]
DIP facility fees					$ (1.7)
Minimum
Operating Leased Assets [Line Items]
Remaining lease terms			1 year
Maximum
Operating Leased Assets [Line Items]
Remaining lease terms			9 years

X

- Definition

Amount of gain (loss) on rejection of leases and other executory contracts, reported as a reorganization item.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of expense for claims expected to be incurred by an entity in reorganization.

+ References

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
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- Definition

Lessee, Operating Lease, Remaining Lease Terms

+ References

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