Guarantor/Non Guarantor Condensed Consolidated Financial Statements (Statements of Operations (Unaudited)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Condensed Financial Statements, Captions [Line Items]
Revenues	$ 117,281	$ 68,353	$ 320,168	$ 205,595
Costs and expenses:
Operating Costs	86,690	51,688	238,519	147,492
Depreciation and amortization	24,623	28,663	74,355	87,409
General and administrative	17,528	14,312	51,342	46,078
Intercompany leasing	0	0	0	0
Bad debt expense (recovery)	491	(359)	(98)	(302)
Impairment charges	0	4,262	795	4,262
Loss (gain) on dispositions of property and equipment, net	1,159	328	2,251	420
Total costs and expenses	128,173	98,238	362,662	284,519
Income (loss) from operations	(10,892)	(29,885)	(42,494)	(78,924)
Other (expense) income:
Equity in earnings of subsidiaries	0	0	0	0
Interest expense	(6,613)	(6,678)	(19,090)	(19,307)
Loss on extinguishment of debt	0	0	0	299
Other (expense) income	295	245	224	574
Total other (expense) income	(6,318)	(6,433)	(18,866)	(19,032)
Income (loss) before income taxes	(17,210)	(36,318)	(61,360)	(97,956)
Income tax (expense) benefit	(17)	1,698	(1,200)	5,646
Net income (loss)	(17,227)	(34,620)	(62,560)	(92,310)
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	0	0	0	0
Costs and expenses:
Operating Costs	0	0	0	0
Depreciation and amortization	0	0	0	0
General and administrative	(138)	(138)	(414)	(414)
Intercompany leasing	0	0	0	0
Bad debt expense (recovery)	0	0	0	0
Impairment charges		0	0	0
Loss (gain) on dispositions of property and equipment, net	0	0	0	0
Total costs and expenses	(138)	(138)	(414)	(414)
Income (loss) from operations	138	138	414	414
Other (expense) income:
Equity in earnings of subsidiaries	7,043	28,381	23,442	72,198
Interest expense	0	0	0	0
Loss on extinguishment of debt				0
Other (expense) income	(138)	(138)	(414)	(414)
Total other (expense) income	6,905	28,243	23,028	71,784
Income (loss) before income taxes	7,043	28,381	23,442	72,198
Income tax (expense) benefit	0	0	0	0
Net income (loss)	7,043	28,381	23,442	72,198
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	109,878	67,731	293,788	203,616
Costs and expenses:
Operating Costs	80,075	50,061	218,344	142,766
Depreciation and amortization	22,882	26,659	69,027	81,257
General and administrative	11,424	9,017	33,818	29,061
Intercompany leasing	(1,215)	(1,215)	(3,645)	(3,645)
Bad debt expense (recovery)	491	(359)	(98)	(302)
Impairment charges		4,262	795	4,262
Loss (gain) on dispositions of property and equipment, net	1,159	325	2,126	366
Total costs and expenses	112,498	88,100	316,115	253,033
Income (loss) from operations	(2,620)	(20,369)	(22,327)	(49,417)
Other (expense) income:
Equity in earnings of subsidiaries	(2,393)	(4,587)	(3,924)	(13,777)
Interest expense	1	(14)	20	(88)
Loss on extinguishment of debt				0
Other (expense) income	220	217	678	1,222
Total other (expense) income	(2,172)	(4,384)	(3,226)	(12,643)
Income (loss) before income taxes	(4,792)	(24,753)	(25,553)	(62,060)
Income tax (expense) benefit	142	959	6,035	3,639
Net income (loss)	(4,650)	(23,794)	(19,518)	(58,421)
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	7,403	622	26,380	1,979
Costs and expenses:
Operating Costs	6,615	1,627	20,175	4,726
Depreciation and amortization	1,428	1,701	4,407	5,192
General and administrative	505	387	1,431	1,107
Intercompany leasing	1,215	1,215	3,645	3,645
Bad debt expense (recovery)	0	0	0	0
Impairment charges		0	0	0
Loss (gain) on dispositions of property and equipment, net	0	3	127	54
Total costs and expenses	9,763	4,927	29,531	14,616
Income (loss) from operations	(2,360)	(4,305)	(3,151)	(12,637)
Other (expense) income:
Equity in earnings of subsidiaries	0	0	0	0
Interest expense	0	(3)	0	1
Loss on extinguishment of debt				0
Other (expense) income	204	152	(77)	(246)
Total other (expense) income	204	149	(77)	(245)
Income (loss) before income taxes	(2,156)	(4,156)	(3,228)	(12,882)
Income tax (expense) benefit	(237)	(431)	(696)	(895)
Net income (loss)	(2,393)	(4,587)	(3,924)	(13,777)
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	0	0	0	0
Costs and expenses:
Operating Costs	0	0	0	0
Depreciation and amortization	313	303	921	960
General and administrative	5,737	5,046	16,507	16,324
Intercompany leasing	0	0	0	0
Bad debt expense (recovery)	0	0	0	0
Impairment charges		0	0	0
Loss (gain) on dispositions of property and equipment, net	0	0	(2)	0
Total costs and expenses	6,050	5,349	17,430	17,284
Income (loss) from operations	(6,050)	(5,349)	(17,430)	(17,284)
Other (expense) income:
Equity in earnings of subsidiaries	(4,650)	(23,794)	(19,518)	(58,421)
Interest expense	(6,614)	(6,661)	(19,110)	(19,220)
Loss on extinguishment of debt				299
Other (expense) income	9	14	37	12
Total other (expense) income	(11,255)	(30,441)	(38,591)	(77,928)
Income (loss) before income taxes	(17,305)	(35,790)	(56,021)	(95,212)
Income tax (expense) benefit	78	1,170	(6,539)	2,902
Net income (loss)	$ (17,227)	$ (34,620)	$ (62,560)	$ (92,310)