Long-Term Debt - Face Value to Carrying Value Reconciliation (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Face Value	$ 284,473	$ 272,629
Carrying Value	317,000
Senior Notes \| 10% Senior Secured Notes due 2021
Debt Instrument [Line Items]
Face Value	9,427	9,427
Unamortized Deferred Financing Costs	(201)	(212)
Excess (Shortfall) Carrying Value	518	606
Carrying Value	9,744	9,821
Payment in Kind (PIK) Note \| 10% Senior Secured PIK Notes due 2021
Debt Instrument [Line Items]
Face Value	275,046	263,202
Unamortized Deferred Financing Costs	0	0
Excess (Shortfall) Carrying Value	(455)	(508)
Accrued PIK Interest	0	8,883
Carrying Value	274,591	271,577
Line of Credit \| Term Loan
Debt Instrument [Line Items]
Face Value	32,500	30,000
Unamortized Deferred Financing Costs	(1,692)	(2,037)
Excess (Shortfall) Carrying Value	0	0
Carrying Value	$ 30,808	$ 27,963

Debt Instrument, Accrued Paid In Kind Interest

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- Definition

Debt Instrument, Excess (Shortfall) Carrying Value

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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-Section 45
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-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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- Definition

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.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

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-Name Accounting Standards Codification
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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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