Segment Reporting Revenue by Product Sales and Services (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue from External Customer [Line Items]
Sales Revenue, Services, Net									$ 765,428	$ 693,895	$ 621,752
Sales Revenue, Goods, Net									308,080	287,185	285,896
Revenue, Net	276,279	273,163	263,139	260,927	254,455	245,428	247,006	234,191	1,073,508	981,080	907,648
Operating Segment Reservoir Description [Member]
Revenue from External Customer [Line Items]
Sales Revenue, Services, Net									493,402	472,426	443,050
Sales Revenue, Goods, Net									28,849	23,103	26,725
Revenue, Net									522,251	495,529	469,775
Operating Segment Production Enhancement [Member]
Revenue from External Customer [Line Items]
Sales Revenue, Services, Net									209,770	161,679	129,400
Sales Revenue, Goods, Net									242,645	242,113	242,049
Revenue, Net									452,415	403,792	371,449
Operating Segment Reservoir Management [Member]
Revenue from External Customer [Line Items]
Sales Revenue, Services, Net									62,256	59,790	49,302
Sales Revenue, Goods, Net									36,586	21,969	17,122
Revenue, Net									$ 98,842	$ 81,759	$ 66,424