Long-Term Debt Long-Term Debt - Schedule of Unamortized Debt Discounts (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Deferred debt costs	$ 166	$ 0
Discounts and deferred debt costs	11,901	19,001
Capital Leases - short-term
Debt Instrument [Line Items]
Unamortized discounts	1,657	1,600
Capital Leases - long-term
Debt Instrument [Line Items]
Unamortized discounts	891	6,000
Term Loan
Debt Instrument [Line Items]
Unamortized discounts	$ 9,187	$ 11,401

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after accumulated amortization, of debt discount (premium).

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

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