Revenues - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 94,347	$ 128,403
Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	94,347	128,403
Discontinued Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	0	95
Central U.S.
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	49,750	91,618
Central U.S. | Discontinued Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		95
Western U.S.
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	45,616	41,463
Western U.S. | Discontinued Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		0
Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	(1,019)	(4,678)
Eliminations | Discontinued Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		0
Well Servicing | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	54,807	58,141
Well Servicing | Central U.S. | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	24,742	40,019
Well Servicing | Western U.S. | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	30,114	19,662
Well Servicing | Eliminations | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	(49)	(1,540)
Water Logistics | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	27,814	44,381
Water Logistics | Central U.S. | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	17,276	38,416
Water Logistics | Western U.S. | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	11,299	8,206
Water Logistics | Eliminations | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	(761)	(2,241)
Completion & Remedial Services | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	11,726	25,881
Completion & Remedial Services | Central U.S. | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	7,732	13,183
Completion & Remedial Services | Western U.S. | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	4,203	13,595
Completion & Remedial Services | Eliminations | Continuing Operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ (209)	$ (897)