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- Definition

Dividends Payable, Number Of Deferred Dividend Payments

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Substantial Doubt About Going Concern, Decline In Production, Percent

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Going Concern - Additional Information (Details) $ in Thousands		3 Months Ended	9 Months Ended
	Sep. 27, 2016	Sep. 30, 2018 USD ($) payment	Sep. 30, 2018 USD ($) payment	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Class of Stock [Line Items]
Decline in production, percent		(41.00%)
Net cash (used in) provided by operating activities			$ 1,865	$ 35,328
Cash and cash equivalents		$ 25,500	25,500	$ 18,064	$ 15,655	$ 28,312
Long-term debt		334,500	334,500
Preferred stock dividend payable		$ 14,133	$ 14,133		10,278
Series B Preferred Stock
Class of Stock [Line Items]
Number of deferred dividend payments \| payment		10	10
Other long-term liabilities \| Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock dividend payable		$ 14,100	$ 14,100
Payment in Kind (PIK) Note \| 10% Senior Secured PIK Notes due 2021
Class of Stock [Line Items]
Long-term debt		$ 274,621	$ 274,621		$ 271,577
Stated interest rate		10.00%	10.00%		10.00%
PIK Interest \| Payment in Kind (PIK) Note \| 10% Senior Secured PIK Notes due 2021
Class of Stock [Line Items]
Stated interest rate		10.00%	10.00%
Cash interest payment due		$ 14,200	$ 14,200
September Exchange and Consent Solicitation \| PIK Interest \| Payment in Kind (PIK) Note \| 10% Senior Secured PIK Notes due 2021
Class of Stock [Line Items]
Stated interest rate	1.00%
Basis spread on variable rate	9.00%