Business Segment, Geographic and Major Customer Information (Tables)

9 Months Ended

Sep. 30, 2013

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 September 30,	Energy Chemical Technologies		Consumer and Industrial Chemical Technologies		Drilling Technologies		Artificial Lift Technologies		Corporate and Other			Total
2013
Net revenue from external customers	$	51,670	$	15,292	$	27,569	$	3,857	$	—		$	98,388
Gross margin	21,849		3,588		10,821		1,244		—			37,502
Income (loss) from operations	16,247		2,301		4,309		769		(8,539		)	15,087
Depreciation and amortization	932		382		2,438		60		213			4,025
Total assets	121,876		97,129		136,832		16,542		8,600			380,979
Capital expenditures	161		165		1,596		225		328			2,475
2012
Net revenue from external customers	$	44,189	$	—	$	30,424	$	4,015	$	—		$	78,628
Gross margin	20,774		—		11,252		1,817		—			33,843
Income (loss) from operations	16,530		—		5,329		1,384		(8,650		)	14,593
Depreciation and amortization	460		—		2,277		54		176			2,967
Total assets	53,076		—		122,533		10,563		31,963			218,135
Capital expenditures	733		—		2,384		5		2,643			5,765

As of and for the nine months ended September 30,	Energy Chemical Technologies		Consumer and Industrial Chemical Technologies		Drilling Technologies		Artificial Lift Technologies		Corporate and Other			Total
2013
Net revenue from external customers	$	144,029	$	27,967	$	86,268	$	11,953	$	—		$	270,217
Gross margin	61,548		7,281		34,622		4,275		—			107,726
Income (loss) from operations	45,300		4,648		15,510		2,712		(27,004		)	41,166
Depreciation and amortization	2,201		634		7,215		181		717			10,948
Total assets	121,876		97,129		136,832		16,542		8,600			380,979
Capital expenditures	3,077		165		4,066		1,669		1,008			9,985
2012
Net revenue from external customers	$	137,827	$	—	$	89,214	$	9,085	$	—		$	236,126
Gross margin	61,856		—		34,764		3,699		—			100,319
Income (loss) from operations	50,005		—		17,320		2,284		(22,679		)	46,930
Depreciation and amortization	1,321		—		6,738		148		261			8,468
Total assets	53,076		—		122,533		10,563		31,963			218,135
Capital expenditures	2,896		—		7,724		73		4,550			15,243

Revenue by geographic location

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

	Three months ended September 30,				Nine months ended September 30,
	2013		2012		2013		2012
U.S.	$	84,640	$	68,512	$	234,151	$	206,394
Other countries	13,748		10,116		36,066		29,732
Total	$	98,388	$	78,628	$	270,217	$	236,126

Summary of revenue from major customers

Revenue from major customers, as a percentage of consolidated revenue, is as follows:

	Three months ended September 30,				Nine months ended September 30,
	2013		2012		2013		2012
Customer A	15.5	%	16.6	%	16.6	%	15.2	%
Customer B	*		*		*		10.4	%
Customer C	*		12.1	%	*		*
* This customer did not account for more than 10% of revenue.