Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Summarized financial information concerning our segments is shown in the following table (in thousands):

	Reservoir Description		Production Enhancement		Corporate & Other 1			Consolidated
Three Months Ended March 31, 2018
Revenue from unaffiliated clients	$	100,809	$	69,209	$	—		$	170,018
Inter-segment revenue	47		51		(98		)	—
Segment operating income (loss)	14,757		17,687		(128		)	32,316
Total assets (at end of period)	319,830		217,935		59,375			597,140
Capital expenditures	2,181		1,847		415			4,443
Depreciation and amortization	4,248		1,002		568			5,818
Three Months Ended March 31, 2017
Revenue from unaffiliated clients	$	104,895	$	51,714	$	—		$	156,609
Inter-segment revenue	174		201		(375		)	—
Segment operating income (loss)	15,940		7,755		(156		)	23,539
Total assets (at end of period)	320,543		196,298		63,575			580,416
Capital expenditures	2,577		3,020		852			6,449
Depreciation and amortization	4,620		1,164		520			6,304