Segment Reporting Revenue by Product Sales and Services (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue from External Customer [Line Items]
Sales Revenue, Services, Net									$ 481,518	$ 470,259	$ 611,954
Sales Revenue, Goods, Net									178,291	124,482	185,566
Total Revenue	$ 171,852	$ 166,247	$ 163,903	$ 157,807	$ 149,542	$ 143,483	$ 148,069	$ 153,647	659,809	594,741	797,520
Operating Segment Reservoir Description [Member]
Revenue from External Customer [Line Items]
Sales Revenue, Services, Net									393,742	400,034	487,202
Sales Revenue, Goods, Net									21,478	26,171	27,643
Total Revenue									415,220	426,205	514,845
Operating Segment Production Enhancement [Member]
Revenue from External Customer [Line Items]
Sales Revenue, Services, Net									87,776	70,225	124,752
Sales Revenue, Goods, Net									156,813	98,311	157,923
Total Revenue									$ 244,589	$ 168,536	$ 282,675