Debt (Components of Debt) (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Mar. 21, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Real estate mortgage notes payable		$ 9,177
Capital lease obligations		14,361
Unamortized issuance costs	[1]	(5,979)
Total debt, net		144,659
Less current portion		3,273	$ 4,632
Total long-term debt, net		141,386	291,429
New Credit Facility
Debt Instrument [Line Items]
Credit Facility		$ 127,100
Predecessor
Debt Instrument [Line Items]
Real estate mortgage notes payable	[2]			$ 9,595
Installment notes payable	[2]			434
Capital lease obligations	[2]			16,946
Unamortized issuance costs	[1],[2]			(2,303)
Total debt, net	[2]			469,112
Less current portion			$ 468,814	469,112	[2]
Total long-term debt, net				0
Predecessor | Prior Credit Facility
Debt Instrument [Line Items]
Credit Facility	[2]			$ 444,440

[1] Debt issuance costs are presented as a direct deduction from debt rather than an asset pursuant to recent accounting guidance. The balance on December 31, 2017, was related to the New Credit Facility while the balance as of December 31, 2016, was related to the Prior Credit Facility.

[2] Senior Notes have not been included in this table as they were classified as “Liabilities subject to compromise” at December 31, 2016. Additionally, as a result of certain debt defaults which occurred in early 2016 and remained uncured during the pendency of the Chapter 11 Cases, all outstanding long-term debt was classified as current at December 31, 2016