Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Operating revenues, net	$ 165,172	$ 169,243	$ 317,062	$ 329,607
Expenses:
Direct expenses	153,514	155,083	310,390	311,309
Selling, general and administrative expenses	17,591	14,485	42,458	29,944
Total operating expenses	171,105	169,568	352,848	341,253
(Gain) loss on disposal of assets	(95)	(171)	(44)	708
Equity in income of unconsolidated affiliate	(1,039)	(81)	(2,400)	(45)
Operating loss	(4,799)	(73)	(33,342)	(12,309)
Interest expense	3,927	8,340	12,093	16,537
Reorganization items, net	26,503		28,103
Other income, net	(333)	364	(293)	1,404
Total expenses	30,097	8,704	39,903	17,941
Loss before income taxes	(34,896)	(8,777)	(73,245)	(30,250)
Income tax (benefit) expense	(2,819)	(1,684)	(5,927)	(6,175)
Net loss	$ (32,077)	$ (7,093)	$ (67,318)	$ (24,075)
Weighted average shares outstanding:
Basic	15,825	15,806	15,825	15,806
Diluted	15,825	15,806	15,825	15,806
Net loss per share:
Basic	$ (2.03)	$ (0.45)	$ (4.25)	$ (1.52)
Diluted	$ (2.03)	$ (0.45)	$ (4.25)	$ (1.52)