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Debt - Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Total Loan, net	$ 89,605	$ 5,394
Long, term debt, net	89,605	5,394
Current maturities of long-term debt	986	4,648
Less current deferred loan costs	0	(803)
Less current maturities of long-term debt, net	(986)	(3,845)
Total long-term debt	88,619	1,549
Tealstone
Debt Instrument [Line Items]
Notes and deferred payments	12,118	0
Notes payable for transportation and construction equipment
Debt Instrument [Line Items]
Notes and deferred payments	1,837	2,665
Nations | Senior secured term loans | Equipment-based Facility [Member]
Debt Instrument [Line Items]
Loan	85,000	3,532
Less deferred loan costs and discount	(9,350)	(803)
Total Loan, net	75,650	2,729
Long, term debt, net	$ 75,650	$ 2,729

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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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