Fresh Start Accounting - Reorganization Adjustments (Details) $ in Thousands	Oct. 01, 2016 USD ($)
Reorganization Adjustments
Fresh-Start Adjustment [Line Items]
Increase in restricted cash - collateral	$ 50,000
Increase in restricted cash - other	2,840
Write-off of prepaid expenses	8,218
Write-off of prepaid deposit	3,770
Decrease in accrued liabilities	43,800
Increase in long-term debt	(731,735)
Reorganization Adjustments \| Restricted by Debt Agreement
Fresh-Start Adjustment [Line Items]
Increase in restricted cash - collateral	50,000
Reorganization Adjustments \| Building Note \| Secured Debt
Fresh-Start Adjustment [Line Items]
Increase in long-term debt	(35,000)
Reorganization Adjustments \| Convertible Notes \| Convertible Debt
Fresh-Start Adjustment [Line Items]
Increase in long-term debt	(281,800)
Reorganization Adjustments \| New First Lien Exit Facility \| Revolving Credit Facility
Fresh-Start Adjustment [Line Items]
Increase in long-term debt	(415,000)
Write off of director and officer insurance premium
Fresh-Start Adjustment [Line Items]
Write-off of prepaid expenses	7,500
Predecessor \| Reorganization Adjustments
Fresh-Start Adjustment [Line Items]
Write-off of prepaid expenses	(8,218)
Write-off of prepaid deposit	3,770
Increase in long-term debt	$ (731,735)

Fresh-Start Adjustment, Increase (Decrease), Restricted Cash And Cash Equivalents, Current, Other

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Fresh-Start Adjustment, Prepaid Expense, Current

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Amount of fresh-start adjustment to accrued liabilities.

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Total fresh-start adjustment to long-term debt.

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Amount of fresh-start adjustment to total other noncurrent assets.

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Amount of fresh-start adjustment to current restricted cash and cash equivalents.

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