Long-Term Debt - Summary of debt (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total debt, including current maturities	$ 376,372	$ 375,587
Less: current maturities of long-term debt	(11,494)	(11,383)
Total long-term debt	364,878	364,204
9% Senior Unsecured Notes Due 2018 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	200,000	200,000
Unamortized debt issuance cost, net	(2,741)	(3,028)
Unamortized discount	(767)	(847)
Total debt, including current maturities	196,492	196,125
Term Loan Due 2017 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	182,745	182,745
Unamortized debt issuance cost, net	(2,865)	(3,283)
Total debt, including current maturities	$ 179,880	$ 179,462

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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-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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-SubTopic 30
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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