[Line Items] for Income Tax Disclosure [Table]

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- Definition

Income Taxes Receivable, Change In Estimated Tax Expense And Refundable Alternative Minimum Tax Credits

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- Definition

Tax Adjustments, Settlements, and Unusual Provisions, Per Share

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a),(b)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32639-109319

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Income Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6515339

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Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.5(c))
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-Section S99
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-Name Accounting Standards Codification
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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Income Taxes (Details) - USD ($)	3 Months Ended			6 Months Ended	9 Months Ended
Income Taxes (Details) - USD ($)	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2016	Sep. 30, 2017
Income Tax Disclosure [Line Items]
Tax expense (benefit) adjustment	$ (37,600,000)
Income tax receivable	17,000,000				$ 17,000,000
Refundable alternative minimum tax credits	(9,700,000)				(9,700,000)
Successor
Income Tax Disclosure [Line Items]
Income tax (benefit) expense	$ (37,587,000)	$ 0		$ 0	(2,881,000)
Tax expense (benefit) adjustment (in dollars per share)	$ 0.71
Predecessor
Income Tax Disclosure [Line Items]
Income tax (benefit) expense			$ 18,000
Minimum
Income Tax Disclosure [Line Items]
Federal NOLs	$ 1,800,000,000				1,800,000,000
Maximum
Income Tax Disclosure [Line Items]
Federal NOLs	$ 2,000,000,000				$ 2,000,000,000