Fresh Start Accounting - Fresh Start Adjustments (Details) - Fresh Start Accounting Adjustments $ in Millions	Nov. 19, 2018 USD ($)
Revaluation of Assets
Fresh-Start Adjustment [Line Items]
Deferred costs	$ (15.1)
Deferred tax balances on capitalized cost	0.1
Revaluation of Liabilities
Fresh-Start Adjustment [Line Items]
Unamortized deferred financing costs	59.4
Estimated fair values of the debt	7.1
Deferred tax balances on capitalized cost	$ (3.0)

Amount of increase (decrease) in debt issuance costs from fresh-start adjustment.

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-Name Accounting Standards Codification
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Amount of fresh-start adjustment to noncurrent deferred income tax assets.

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Amount of fresh-start adjustment to noncurrent deferred income tax liabilities.

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Total fresh-start adjustment to long-term debt.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of fresh-start adjustment to total other noncurrent assets.

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