Long-term Debt - Obligations (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Apr. 28, 2016	Dec. 31, 2015
Obligations
Total debt	$ 165,501		$ 182,992
Current portion of long-term debt and lease obligations	(20,371)		(7,912)
Non-current portion of long-term debt and lease obligations	145,130		175,080
Senior secured second-priority notes [Member] \| Senior secured second-priority notes (maturing December 15, 2021) [Member]
Obligations
Total debt	120,569	$ 120,600	0
Senior secured second-priority notes [Member] \| Senior secured third-priority notes (maturing May 15, 2018) [Member]
Obligations
Total debt	28,497	$ 28,500	175,000
Revolving credit facility [Member]
Obligations
Total debt	15,000		0
Costs associated with issuances of debt	(5,318)		(3,328)
Equipment capital leases [Member]
Obligations
Total debt	6,068		9,762
Other debt [Member]
Obligations
Total debt	$ 685		$ 1,558

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- Definition

Amount, before 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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- 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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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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- Definition

Amount of long-term debt and capital lease obligations including current maturities.

+ References

No definition available.

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