Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term debt	$ 528,514	$ 520,422
Unamortized discount and debt issuance costs	(8,266)	(8,726)
Current portion of long-term debt	16,836	22,468
Long-term debt, net	511,678	497,954
Working Capital Revolver Loan [Member]
Debt Instrument [Line Items]
Long-term debt	0	0
7.75% Senior Secured Notes [Member]
Debt Instrument [Line Items]
Long-term debt	425,000	425,000
12% Senior Secured Notes Due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt	50,000	50,000
Secured Promissory Note Due 2016 [Member]
Debt Instrument [Line Items]
Long-term debt	14,090	15,856
5.73% Secured Promissory Note due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt	9,917
Secured Promissory Note Due 2021 [Member]
Debt Instrument [Line Items]
Long-term debt	16,189	16,189
Secured Promissory Note Due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt	15,000	15,000
Other [Member]
Debt Instrument [Line Items]
Long-term debt	$ 6,584	$ 7,103

The total of unamortized discount and debt issuance costs as of the balance sheet date.

No definition available.

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- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13,16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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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.

+ Details

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- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section H

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- Definition

Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

+ References

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