Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2015

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,
	2015		2014		2013
Reservoir Description Services	$	445,729	$	495,658	$	493,402
Production Enhancement Services	121,675		220,177		209,770
Reservoir Management Services	44,550		65,037		62,256
Total Revenue - Services	$	611,954	$	780,872	$	765,428
Reservoir Description Product sales	$	27,643	$	23,316	$	28,849
Production Enhancement Product sales	145,549		247,400		242,645
Reservoir Management Product sales	12,374		33,634		36,586
Total Revenue - Product sales	$	185,566	$	304,350	$	308,080
Total Revenue	$	797,520	$	1,085,222	$	1,073,508

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, 2015
Revenues from unaffiliated clients	$	473,372	$	267,224	$	56,924	$	—		$	797,520
Inter-segment revenues	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
Revenues 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

December 31, 2013
Revenue from unaffiliated clients	$	522,251	$	452,415	$	98,842	$	—		$	1,073,508
Inter-segment revenue	3,432		3,140		1,742		(8,314		)	—
Segment operating income (loss)	146,338		154,715		31,555		811			333,419
Total assets (at end of period)	321,106		255,764		37,660		44,834			659,364
Capital expenditures	22,601		7,124		1,366		4,325			35,416
Depreciation and amortization	14,898		7,745		945		1,883			25,471
(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, 2015, 2014 and 2013 (in thousands):

GEOGRAPHIC INFORMATION	United States		Canada		Other Countries (1) (2)		Consolidated
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
December 31, 2013
Revenue	$	487,252	$	107,842	$	478,414	$	1,073,508
Property, plant and equipment, net	73,870		17,195		47,759		138,824
(1) Revenue earned in other countries, including The Netherlands, was not individually greater than 10% of our consolidated revenue in 2015, 2014 or 2013.
(2) Property, plant and equipment, net in other countries, including The Netherlands, were not individually greater than 10% of our consolidated fixed assets in 2015, 2014 or 2013.