Long-Term Debt - Schedule of Revolving Credit Facility and Long-Term Debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term debt	$ 519,585	$ 520,422
Unamortized discount and debt issuance costs	(12,163)	(8,726)
Less current portion of long-term debt, net	110,495	22,468
Long-term debt, net	409,090	497,954
4% Working Capital Revolver Loan [Member]
Debt Instrument [Line Items]
Long-term debt		0
Senior Secured Notes Due 2019 [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
3.84% Secured Promissory Note Due 2017 [Member]
Debt Instrument [Line Items]
Long-term debt	8,392	15,856
5.73% Secured Promissory Note Due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt	9,417
5.25% Secured Promissory Note Due 2021 [Member]
Debt Instrument [Line Items]
Long-term debt	15,000	16,189
4.77% Secured Promissory Note Due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt	19,140	15,000
Other [Member]
Debt Instrument [Line Items]
Long-term debt	$ 4,799	$ 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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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 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

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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

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 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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