Business Segment, Geographic and Major Customer Information (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Financial information regarding reportable segments

Summarized financial information of the reportable segments is as follows (in thousands):

As of and for the three months ended March 31,	Energy Chemical Technologies		Consumer and Industrial Chemical Technologies		Drilling Technologies		Production Technologies			Corporate and Other			Total
2014
Net revenue from external customers	$	62,377	$	13,030	$	24,901	$	2,267		$	—		$	102,575
Gross margin	29,220		4,033		9,788		640			—			43,681
Income (loss) from operations	21,623		2,335		3,317		(79		)	(8,398		)	18,798
Depreciation and amortization	1,067		433		2,437		70			212			4,219
Total assets	137,638		93,217		136,141		14,864			8,656			390,516
Capital expenditures	1,386		14		3,296		61			233			4,990
2013
Net revenue from external customers	$	44,650	$	—	$	28,914	$	4,679		$	—		$	78,243
Gross margin	19,113		—		11,346		2,171			—			32,630
Income (loss) from operations	14,324		—		5,419		1,613			(8,808		)	12,548
Depreciation and amortization	460		—		2,362		61			150			3,033
Total assets	59,301		—		120,015		12,280			26,887			218,483
Capital expenditures	1,025		—		861		997			1,500			4,383

Revenue by geographic location

Revenue by geographic location is as follows (in thousands):

	Three months ended March 31,
	2014		2013
U.S.	$	87,331	$	66,023
Other countries	15,244		12,220
Total	$	102,575	$	78,243