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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, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Leased Assets [Line Items]
Impairment of Leasehold					$ 5.6
Contract items	$ 3.9	$ (1.7)		$ 4.4
Change in Right of use asset				10.5
Change in Lease Liabilities				20.4
Change in Right of use asset for Corporate Headquarters in Houston, Texas				6.4
Change in lease liability for Corporate Headquarters in Houston, Texas				10.4
DIP facility fees	(0.5)	0.0		11.5
Cash paid for lease liabilities	$ 7.1	$ 11.7		$ 23.5	$ 29.9
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.

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

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- Definition

The adjustment to reduce the value of existing agreements that specify the lessee's rights to use the leased property. This expense is charged when the estimates of future profits generated by the leased property are reduced.

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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.

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