Revenues - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	$ 178,365	$ 246,334	$ 565,414	$ 734,368
Products transferred at a point in time
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	2,601	1,302	3,331
Products and services transferred over time
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	178,365	243,733	564,112	731,037
Fracturing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	17,326	49,076	66,342	165,597
Rental Tool Revenue
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	19,572	23,511	60,027	66,153
Coiled Tubing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	15,248	17,328	43,875	52,487
Snubbing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	1,034	2,213	3,137	9,654
Well Servicing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	47,481	55,098	148,065	157,766
Plugging
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	7,227	6,685	20,307	19,219
Transport/Vacuum
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	30,277	35,889	93,740	107,932
Hot Oiler
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	4,950	4,696	16,437	15,084
Production and Disposal Facilities
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	4,574	6,158	15,637	17,853
Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	30,676	45,680	97,847	122,623
Permian Basin | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	78,111	95,635	245,239	294,008
Texas Gulf Coast | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	18,789	19,300	57,754	59,597
ArkLaTex & Mid-Continent | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	49,277	85,956	175,238	245,957
Rocky Mountain | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	31,861	43,249	94,620	123,348
Eastern USA | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		1,742		9,169
West Coast | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	4,981	8,341	16,838	22,520
Corporate (Intercompany) | Geography Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	(4,654)	(7,889)	(24,275)	(20,231)
Completion & Remedial Services
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	70,002	115,978	224,897	360,523
Completion & Remedial Services | Products transferred at a point in time
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Completion & Remedial Services | Products and services transferred over time
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	70,002	115,978	224,897	360,523
Completion & Remedial Services | Fracturing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	17,326	49,076	66,342	165,597
Completion & Remedial Services | Rental Tool Revenue
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	19,572	23,511	60,027	66,153
Completion & Remedial Services | Coiled Tubing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	15,248	17,328	43,875	52,487
Completion & Remedial Services | Snubbing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	1,034	2,213	3,137	9,654
Completion & Remedial Services | Well Servicing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Completion & Remedial Services | Plugging
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Completion & Remedial Services | Transport/Vacuum
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Completion & Remedial Services | Hot Oiler
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Completion & Remedial Services | Production and Disposal Facilities
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Completion & Remedial Services | Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	16,822	23,850	51,516	66,632
Completion & Remedial Services | Permian Basin | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	21,162	29,344	62,932	102,059
Completion & Remedial Services | Texas Gulf Coast | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	1,390	3,509	6,733	11,663
Completion & Remedial Services | ArkLaTex & Mid-Continent | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	28,179	58,692	101,443	172,864
Completion & Remedial Services | Rocky Mountain | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	20,062	26,513	58,535	76,869
Completion & Remedial Services | Eastern USA | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		652		3,609
Completion & Remedial Services | West Coast | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Completion & Remedial Services | Corporate (Intercompany) | Geography Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	(791)	(2,732)	(4,746)	(6,541)
Well Servicing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	57,094	64,314	175,777	184,532
Well Servicing | Products transferred at a point in time
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Well Servicing | Products and services transferred over time
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	57,094	64,314	175,777	184,532
Well Servicing | Fracturing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Well Servicing | Rental Tool Revenue
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Well Servicing | Coiled Tubing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Well Servicing | Snubbing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Well Servicing | Well Servicing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	47,481	55,098	148,065	157,766
Well Servicing | Plugging
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	7,227	6,685	20,307	19,219
Well Servicing | Transport/Vacuum
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Well Servicing | Hot Oiler
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Well Servicing | Production and Disposal Facilities
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Well Servicing | Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	2,386	2,531	7,405	7,547
Well Servicing | Permian Basin | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	29,231	31,046	91,165	88,427
Well Servicing | Texas Gulf Coast | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	7,356	6,635	22,394	21,290
Well Servicing | ArkLaTex & Mid-Continent | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	9,716	10,271	28,868	28,150
Well Servicing | Rocky Mountain | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	6,404	7,546	18,620	20,681
Well Servicing | Eastern USA | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		1,090		5,560
Well Servicing | West Coast | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	4,981	8,341	16,838	22,520
Well Servicing | Corporate (Intercompany) | Geography Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	(594)	(615)	(2,108)	(2,096)
Water Logistics
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	48,451	59,539	155,083	175,727
Water Logistics | Products transferred at a point in time
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Water Logistics | Products and services transferred over time
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	48,451	59,539	155,083	175,727
Water Logistics | Fracturing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Water Logistics | Rental Tool Revenue
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Water Logistics | Coiled Tubing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Water Logistics | Snubbing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Water Logistics | Well Servicing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Water Logistics | Plugging
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Water Logistics | Transport/Vacuum
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	30,277	35,889	93,740	107,932
Water Logistics | Hot Oiler
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	4,950	4,696	16,437	15,084
Water Logistics | Production and Disposal Facilities
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	4,574	6,158	15,637	17,853
Water Logistics | Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	8,650	12,796	29,269	34,858
Water Logistics | Permian Basin | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	25,048	31,647	82,982	94,302
Water Logistics | Texas Gulf Coast | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	10,043	9,156	28,627	26,644
Water Logistics | ArkLaTex & Mid-Continent | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	10,665	10,913	34,010	33,234
Water Logistics | Rocky Mountain | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	5,395	9,190	17,465	25,798
Water Logistics | Eastern USA | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		0		0
Water Logistics | West Coast | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Water Logistics | Corporate (Intercompany) | Geography Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	(2,700)	(1,367)	(8,001)	(4,251)
Other Services
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	2,818	6,503	9,657	13,586
Other Services | Products transferred at a point in time
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	2,601	1,302	3,331
Other Services | Products and services transferred over time
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	2,818	3,902	8,355	10,255
Other Services | Fracturing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Rental Tool Revenue
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Coiled Tubing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Snubbing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Well Servicing
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Plugging
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Transport/Vacuum
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Hot Oiler
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Production and Disposal Facilities
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	2,818	6,503	9,657	13,586
Other Services | Permian Basin | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	2,670	3,598	8,160	9,220
Other Services | Texas Gulf Coast | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | ArkLaTex & Mid-Continent | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	717	6,080	10,917	11,709
Other Services | Rocky Mountain | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Eastern USA | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues		0		0
Other Services | West Coast | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0	0	0	0
Other Services | Corporate (Intercompany) | Geography Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	$ (569)	$ (3,175)	$ (9,420)	$ (7,343)