Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (Unaudited)

Selected Quarterly Financial Data (Unaudited)

The following table sets forth selected quarterly financial data for each of the quarters in 2014 and 2013:

(in thousands, except per share amounts)

	2014											2013
	Fourth Quarter		Third Quarter			Second Quarter			First Quarter			Fourth Quarter		Third Quarter			Second Quarter		First Quarter
Net sales	$	166,630	$	209,320		$	207,893		$	168,305		$	160,074	$	195,619		$	195,348	$	154,281
Cost of sales	93,833		113,767			111,993			90,525			90,330		105,724			106,176		89,561
Gross profit	72,797		95,553			95,900			77,780			69,744		89,895			89,172		64,720
Research and development and other engineering	9,513		9,711			10,094			9,700			9,825		9,226			9,484		8,308
Selling	22,407		23,592			24,213			21,819			21,449		20,630			21,652		21,371
General and administrative	25,508		29,557			29,494			26,941			25,164		28,523			28,347		26,036
Impairment of goodwill	38		492			—			—			—		—			—		—
Loss (gain) on sale of assets	11		(17		)	(34		)	(285		)	1,404		631			11		(8		)
Income (loss) from   operations	15,320		32,218			32,133			19,605			11,902		30,885			29,678		9,013
Interest income (expense), net	2		(27		)	(15		)	86			56		(9		)	1		38
Income (loss) before income   taxes	15,322		32,191			32,118			19,691			11,958		30,876			29,679		9,051
Provision for (benefit from)   income taxes	4,942		11,577			11,667			7,605			4,290		10,870			11,177		4,256
Net income	$	10,380	$	20,614		$	20,451		$	12,086		$	7,668	$	20,006		$	18,502	$	4,795
Earnings per common share:									0
Basic	$	0.21	$	0.42		$	0.42		$	0.25		$	0.16	$	0.41		$	0.38	$	0.10
Diluted	0.21		0.42			0.42			0.25			0.16		0.41			0.38		0.10
Cash dividends declared per    common share	$	0.140	$	0.140		$	0.140		$	0.125		$	0.125	$	0.125		$	0.125	$	—

Basic and diluted income per common share for each of the quarters presented above is based on the respective weighted average numbers of common and dilutive potential common shares outstanding for each quarter, and the sum of the quarters may not necessarily be equal to the full year basic and diluted net income per common share amounts.