Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended	5 Months Ended	6 Months Ended
	Jun. 30, 2020	May 31, 2020	Jun. 30, 2019	May 31, 2020	Jun. 30, 2019
Revenues:
Revenues	$ 11,163	$ 28,048	$ 152,843	$ 142,370	$ 299,411
Costs and expenses:
Operating costs	8,743	22,025	115,970	114,047	224,555
Depreciation and amortization	5,236	13,663	22,851	35,647	45,504
General and administrative	4,213	7,392	18,028	22,047	37,786
Pre-petition restructuring charges	0	(252)	0	16,822	0
Impairment	388	0	332	17,853	1,378
Bad debt expense (recovery), net	(283)	482	(348)	1,209	(286)
Gain on dispositions of property and equipment, net	(460)	(272)	(1,126)	(989)	(2,201)
Total costs and expenses	17,837	43,038	155,707	206,636	306,736
Loss from operations	(6,674)	(14,990)	(2,864)	(64,266)	(7,325)
Other income (expense):
Interest expense, net of interest capitalized	(2,215)	(4,135)	(10,105)	(12,294)	(19,990)
Reorganization Items, net	(1,144)	(15,240)	0	(21,903)	0
Loss on extinguishment of debt	0	(3,723)		(4,215)	0
Other income (expense), net	(230)	2,212	349	(3,333)	1,033
Total other expense, net	(3,589)	(20,886)	(9,756)	(41,745)	(18,957)
Loss before income taxes	(10,263)	(35,876)	(12,620)	(106,011)	(26,282)
Income tax (expense) benefit	446	755	(324)	1,786	(1,777)
Net loss	$ (9,817)	$ (35,121)	$ (12,944)	$ (104,225)	$ (28,059)
Loss per common share - Basic	$ (9.37)	$ (0.44)	$ (0.17)	$ (1.32)	$ (0.36)
Loss per common share - Diluted	$ (9.37)	$ (0.44)	$ (0.17)	$ (1.32)	$ (0.36)
Weighted average number of shares outstanding - Basic	1,048	79,288	78,430	78,968	78,371
Weighted average number of shares outstanding - Diluted	1,048	79,288	78,430	78,968	78,371