Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2017

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 September 30, 2017
Revenue from unaffiliated clients	$	101,442	$	64,805	$	—		$	166,247
Inter-segment revenue	54		87		(141		)	—
Segment operating income (loss)	14,621		12,972		(117		)	27,476
Total assets (at end of period)	315,346		207,186		60,212			582,744
Capital expenditures	2,930		1,605		367			4,902
Depreciation and amortization	4,383		1,190		518			6,091
Three Months Ended September 30, 2016
Revenue from unaffiliated clients	$	105,427	$	38,056	$	—		$	143,483
Inter-segment revenue	533		563		(1,096		)	—
Segment operating income (loss)	21,274		118		96			21,488
Total assets (at end of period)	322,222		190,479		49,437			562,138
Capital expenditures	2,020		318		100			2,438
Depreciation and amortization	4,647		1,429		648			6,724
Nine Months Ended September 30, 2017
Revenue from unaffiliated clients	$	310,650	$	177,307	$	—		$	487,957
Inter-segment revenue	275		537		(812		)	—
Segment operating income (loss)	49,231		31,132		(301		)	80,062
Total assets	315,346		207,186		60,212			582,744
Capital expenditures	7,605		5,394		1,265			14,264
Depreciation and amortization	13,531		3,732		1,557			18,820
Nine Months Ended September 30, 2016
Revenue from unaffiliated clients	$	321,129	$	124,070	$	—		$	445,199
Inter-segment revenue	1,579		1,167		(2,746		)	—
Segment operating income (loss)	60,011		4,615		29			64,655
Total assets	322,222		190,479		49,437			562,138
Capital expenditures	6,376		856		508			7,740
Depreciation and amortization	13,914		4,518		1,890			20,322