Business Segment, Geographic and Major Customer Information (Tables)

9 Months Ended

Sep. 30, 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 September 30,	Energy Chemical Technologies		Consumer and Industrial Chemical Technologies		Drilling Technologies		Production Technologies		Corporate and Other			Total
2014
Net revenue from external customers	$	68,181	$	13,713	$	29,920	$	4,947	$	—		$	116,761
Gross margin	28,424		3,310		11,928		2,416		—			46,078
Income (loss) from operations	19,903		1,758		5,557		1,583		(7,954		)	20,847
Depreciation and amortization	1,103		547		2,433		81		298			4,462
Total assets	144,738		89,574		142,774		18,252		17,080			412,418
Capital expenditures	2,580		7		818		141		703			4,249
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

As of and for the nine months ended September 30,	Energy Chemical Technologies		Consumer and Industrial Chemical Technologies		Drilling Technologies		Production Technologies		Corporate and Other			Total
2014
Net revenue from external customers	$	193,148	$	39,351	$	82,061	$	10,093	$	—		$	324,653
Gross margin	85,074		10,237		32,477		4,280		—			132,068
Income (loss) from operations	60,690		5,064		13,073		1,925		(23,432		)	57,320
Depreciation and amortization	3,264		1,529		7,363		244		876			13,276
Total assets	144,738		89,574		142,774		18,252		17,080			412,418
Capital expenditures	5,383		37		6,139		252		1,683			13,494
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

Revenue by geographic location

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

	Three months ended September 30,				Nine months ended September 30,
	2014		2013		2014		2013
U.S.	$	92,643	$	84,640	$	271,663	$	234,151
Other countries	24,118		13,748		52,990		36,066
Total	$	116,761	$	98,388	$	324,653	$	270,217