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Business Combinations - Textual (Details) - USD ($) $ in Thousands		1 Months Ended		14 Months Ended
	Nov. 13, 2017	Nov. 30, 2017	Aug. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill				$ 43,832	$ 43,620	$ 19,995
Well Service Group, Inc. and Utility Access Solutions, Inc. (WSG) [Member]
Business Acquisition [Line Items]
Purchase consideration, net of cash acquired				77,437
Cash consideration	$ 44,750	$ 45,000
Business acquisition, common shares issuance (in shares)		3,361,367
Equity issued at closing in 2017	$ 32,438
Intangible assets		$ 27,000
Finite-lived intangible assets acquired, weighted-average amortization period	13 years
Goodwill				$ 23,750
Well Service Group, Inc. and Utility Access Solutions, Inc. (WSG) [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired, amortization period	10 years
Well Service Group, Inc. and Utility Access Solutions, Inc. (WSG) [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired, amortization period	15 years
Pragmatic Drilling Fluids Additives, Ltd [Member]
Business Acquisition [Line Items]
Purchase consideration, net of cash acquired			$ 4,400
Intangible assets			1,700
Goodwill			$ 1,700