Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Revenues	$ 114,322	$ 146,568
Costs and expenses:
Operating costs	92,022	108,585
Depreciation	21,984	22,653
General and administrative	14,655	19,758
Pre-petition restructuring charges	17,074	0
Impairment	17,853	1,046
Bad debt expense, net	727	62
Gain on dispositions of property and equipment, net	(717)	(1,075)
Total costs and expenses	163,598	151,029
Loss from operations	(49,276)	(4,461)
Other income (expense):
Interest expense, net of interest capitalized	(8,651)	(9,885)
Reorganization Items	(6,663)	0
Other income (expense), net	(5,545)	684
Total other expense, net	(20,859)	(9,201)
Loss before income taxes	(70,135)	(13,662)
Income tax (expense) benefit	1,031	(1,453)
Net loss	$ (69,104)	$ (15,115)
Loss per common share - Basic	$ (0.88)	$ (0.19)
Loss per common share - Diluted	$ (0.88)	$ (0.19)
Weighted average number of shares outstanding - Basic	78,753	78,311
Weighted average number of shares outstanding - Diluted	78,753	78,311