Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2016

Segment Reporting Information [Line Items]

Revenue from External Customers by Products and Services [Table Text Block]

SEGMENT BREAKDOWN BETWEEN SERVICES / PRODUCT SALES	For the Years Ended December 31,
	2016		2015		2014
Reservoir Description Services	$	377,975	$	445,729	$	495,658
Production Enhancement Services	68,433		121,675		220,177
Reservoir Management Services	23,851		44,550		65,037
Total Revenue - Services	$	470,259	$	611,954	$	780,872
Reservoir Description Product sales	$	26,171	$	27,643	$	23,316
Production Enhancement Product sales	95,594		145,549		247,400
Reservoir Management Product sales	2,717		12,374		33,634
Total Revenue - Product sales	$	124,482	$	185,566	$	304,350
Total Revenue	$	594,741	$	797,520	$	1,085,222

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Results for these business segments are presented below. We use the same accounting policies to prepare our b

Results for these business segments are presented below. We use the same accounting policies to prepare our business segment results as are used to prepare our Consolidated Financial Statements. All interest and other non-operating income (expense) is attributable to Corporate & Other area and is not allocated to specific business segments. Summarized financial information concerning our segments is shown in the following table (in thousands):

	Reservoir Description		Production Enhancement		Reservoir Management		Corporate & Other (1)			Consolidated
December 31, 2016
Revenues from unaffiliated clients	$	404,146	$	164,027	$	26,568	$	—		$	594,741
Inter-segment revenues	3,941		877		121		(4,939		)	—
Segment operating income (loss)	75,148		8,891		2,043		97			86,179
Total assets (at end of period)	301,574		191,846		17,599		62,033			573,052
Capital expenditures	8,195		2,298		25		838			11,356
Depreciation and amortization	17,735		5,272		1,344		2,521			26,872
December 31, 2015
Revenues from unaffiliated clients	$	473,372	$	267,224	$	56,924	$	—		$	797,520
Inter-segment revenue	8,674		1,837		248		(10,759		)	—
Segment operating income (loss)	111,032		35,027		15,655		(644		)	161,070
Total assets (at end of period)	326,182		210,214		27,076		61,786			625,258
Capital expenditures	17,849		3,292		273		1,383			22,797
Depreciation and amortization	16,778		6,611		1,624		2,444			27,457

December 31, 2014
Revenue from unaffiliated clients	$	518,974	$	467,577	$	98,671	$	—		$	1,085,222
Inter-segment revenue	10,387		2,459		366		(13,212		)	—
Segment operating income (loss)	143,624		165,204		37,220		483			346,531
Total assets (at end of period)	319,325		257,135		34,179		62,686			673,325
Capital expenditures	21,371		7,990		2,681		4,544			36,586
Depreciation and amortization	15,816		7,509		1,393		1,978			26,696
(1) "Corporate and other" represents those items that are not directly relating to a particular segment and eliminations.

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

The following table shows a summary of our U.S. and non-U.S. operations (with 2013 revenue reclassified as described above) for December 31, 2016, 2015 and 2014 (in thousands):

GEOGRAPHIC INFORMATION	United States		Canada		Other Countries (1) (2)		Consolidated
December 31, 2016
Revenue	$	224,863	$	22,547	$	347,331	$	594,741
Property, plant and equipment, net	71,388		10,497		47,997		129,882
December 31, 2015
Revenue	$	338,907	$	43,808	$	414,805	$	797,520
Property, plant and equipment, net	80,603		12,082		50,526		143,211
December 31, 2014
Revenue	$	515,643	$	105,244	$	464,335	$	1,085,222
Property, plant and equipment, net	83,748		16,057		49,209		149,014
(1) Revenue earned in other countries, including The Netherlands, was not individually greater than 10% of our consolidated revenue in 2016, 2015 or 2014.
(2) Property, plant and equipment, net in other countries, including The Netherlands, were not individually greater than 10% of our consolidated fixed assets in 2016, 2015 or 2014.