Consolidated Statements of Operations - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Total revenues										$ 710,135	$ 964,720
Expenses:
General and administrative, including stock-based compensation of $9,156 and $27,254 in 2019 and 2018, respectively										133,668	167,515
Depreciation and amortization	[1]									114,657	126,417
Loss (gain) on disposal of assets	[1]									4,013	(2,598)
Total expenses										849,732	1,037,750
Operating loss										(139,597)	(73,030)
Other income (expense):
Loss on extinguishment of debt										0	(26,429)
Interest expense										(43,470)	(45,853)
Interest income										509	364
Other income										681	578
Loss from continuing operations before income taxes										(91,380)	(116,509)
Income tax expense										(21)	(227)
Loss from continuing operations		$ (32,522)	$ (24,778)	$ (19,315)	$ (14,786)	$ (41,742)	$ (20,354)	$ (30,990)	$ (23,650)	(91,401)	(116,736)
Loss from discontinued operations		$ (55,245)	$ (14,100)	$ (8,462)	$ (12,690)	$ (4,935)	$ (6,981)	$ (9,064)	$ (6,881)	(90,497)	(27,861)
Net loss										$ (181,898)	$ (144,597)
Earnings Per Share [Abstract]
Net loss from continuing operations per share, basic and diluted (in dollars per share)		$ (1.30)	$ (0.97)	$ (0.71)	$ (0.55)	$ (1.57)	$ (0.77)	$ (1.18)	$ (0.89)	$ (3.50)	$ (4.41)
Net loss from discontinued operations per share, basic and diluted (in dollars per share)		$ (2.22)	$ (0.55)	$ (0.31)	$ (0.47)	$ (0.19)	$ (0.26)	$ (0.34)	$ (0.26)	(3.46)	(1.05)
Net loss per share of common stock, basic and diluted (in dollars per share)										$ (6.96)	$ (5.46)
Well Servicing
Revenues:
Total revenues										$ 226,966	$ 250,991
Expenses:
Service expenses										186,690	203,585
Water Logistics
Revenues:
Total revenues										199,816	231,283
Expenses:
Service expenses										141,379	166,926
Completion & Remedial Services
Revenues:
Total revenues										274,942	469,456
Expenses:
Service expenses										226,604	365,775
Continuing operations
Revenues:
Total revenues		$ 121,922	$ 144,163	$ 147,975	$ 153,190	$ 157,866	$ 171,144	$ 165,558	$ 158,997	567,250	653,565
Expenses:
Service expenses										426,815	480,405
General and administrative, including stock-based compensation of $9,156 and $27,254 in 2019 and 2018, respectively										118,460	145,725
Depreciation and amortization										69,489	78,173
Loss (gain) on disposal of assets										2,135	(4,918)
Total expenses										616,899	699,385
Operating loss										(49,649)	(45,820)
Other income (expense):
Loss on extinguishment of debt										0	(26,429)
Interest expense										(42,887)	(45,161)
Interest income										509	364
Other income										647	537
Loss from continuing operations before income taxes										(91,380)	(116,509)
Income tax expense										(21)	(227)
Loss from continuing operations										(91,401)	(116,736)
Continuing operations | Well Servicing
Revenues:
Total revenues										226,966	250,982
Expenses:
Service expenses										186,782	203,785
Continuing operations | Water Logistics
Revenues:
Total revenues										199,816	231,283
Expenses:
Service expenses										141,379	166,907
Continuing operations | Completion & Remedial Services
Revenues:
Total revenues										140,468	171,300
Expenses:
Service expenses										$ 98,654	$ 109,713

[1] (a) See reconciling cash flow items from discontinued operations in Note 2: Discontinued Operations