Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Operating revenues, net	$ 151,890	$ 160,370
Expenses:
Direct expenses	156,874	156,226
Selling, general and administrative expenses	24,869	15,459
Total operating expenses	181,743	171,685
Loss on disposal of assets	51	879
Equity in (income) loss of unconsolidated affiliates, net	(1,361)	37
Operating loss	(28,543)	(12,231)
Interest expense	8,166	8,197
Reorganization items, net	1,600	0
Other income – net	40	1,045
Total expenses	9,806	9,242
Loss before income taxes	(38,349)	(21,473)
Income tax benefit	(3,108)	(4,490)
Net loss	$ (35,241)	$ (16,983)
Weighted average shares outstanding:
Basic (shares)	15,825	15,806
Diluted (shares)	15,825	15,806
Net loss per share:
Basic (in USD per share)	$ (2.23)	$ (1.07)
Diluted (in USD per share)	$ (2.23)	$ (1.07)