Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Senior debt:
Total debt	$ 163,040	$ 171,865
Less: Debt issuance costs and discount	(3,372)	(3,098)
Total debt, net of debt issuance costs and discount	159,668	168,767
Less: Current maturities	(8,812)	(13,171)
Long-term debt, net of current maturities	150,856	155,596
Revolving credit facility
Senior debt:
Total debt	0	134,532
Term loans [Member]
Senior debt:
Total debt	0	37,333
ABL Facility [Member]
Senior debt:
Total debt	112,367	0
Term Loan Facility [Member]
Senior debt:
Total debt	$ 50,673	$ 0