Long-Term Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt discount and issuance costs	$ (26,409)	$ (29,695)
Total long-term debt	653,003	592,966
Less current portion	(29,529)	(28,485)
Long-term debt, net of current portion	623,474	564,481
Term Loan Credit Facility \| Term Loan Credit Facility - due June 2024
Debt Instrument [Line Items]
Long-term debt, gross	557,587	558,991
Line of Credit \| ABL Facility - due April 2022
Debt Instrument [Line Items]
Long-term debt, gross	57,500	0
Note Payable \| LCC Note Payable
Debt Instrument [Line Items]
Long-term debt, gross	45,000	45,000
Note Payable \| LCC Water Treatment Obligation
Debt Instrument [Line Items]
Long-term debt, gross	9,375	9,375
Other
Debt Instrument [Line Items]
Long-term debt, gross	$ 9,950	$ 9,295

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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