Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data

Quarterly Financial Data (Unaudited)

The following table presents our unaudited consolidated statements of operations data for each quarter in the two years ended December 31, 2014. We believe that all necessary adjustments, consisting only of normal recurring adjustments, have been made to present fairly the unaudited quarterly results when read in conjunction with our audited consolidated financial statements and the notes thereto appearing elsewhere in this document. These operating results are not necessarily indicative of the results of operations that may be expected for any future period.

	For the Three Months Ended
	Dec. 31, 2014			Sept. 30, 2014			June 30, 2014			Mar 31, 2014			Dec. 31, 2013			Sept. 30, 2013			June 30, 2013			Mar. 31, 2013
							(in thousands, except per share data)
Net sales	$	130,967		$	138,858		$	139,723		$	133,384		$	133,721		$	135,042		$	138,324		$	139,805
Costs and expenses:
Cost of products sold	78,207			83,364			84,372			81,218			84,629			81,656			85,674			85,298
Selling	17,641			18,195			18,988			18,178			18,252			17,779			18,095			19,221
General and administrative	13,202			14,133			14,407			14,797			14,796			15,278			15,506			14,634
Research and development	2,004			1,909			2,044			1,946			1,970			1,845			2,089			1,954
Restructuring	2,430			3,466			7,595			4,651			6,390			3,034			4,165			1,255
Total operating costs and expenses	113,484			121,067			127,406			120,790			126,037			119,592			125,529			122,362
Income from operations	17,483			17,791			12,317			12,594			7,684			15,450			12,795			17,443
Other income (expense):
Interest expense, net	(9,782		)	(9,412		)	(8,917		)	(8,657		)	(8,983		)	(9,378		)	(13,112		)	(9,206		)
Loss on extinguishment of debt	—			—			—			—			—			—			(3,123		)	—
Foreign exchange gain (loss)	98			367			(307		)	(877		)	50			(905		)	50			(249		)
Income (loss) before benefit (provision) for income taxes	7,799			8,746			3,093			3,060			(1,249		)	5,167			(3,390		)	7,988
Benefit (provision) for income taxes	3,360			(29,218		)	(2,329		)	(1,893		)	4,692			(3,063		)	(3,489		)	(2,503		)
Net income (loss)	$	11,159		$	(20,472	)	$	764		$	1,167		$	3,443		$	2,104		$	(6,879	)	$	5,485
Comprehensive (loss) income	$	(23,785	)	$	(41,003	)	$	2,278		$	(758	)	$	13,330		$	9,182		$	(9,245	)	$	2,727
Net income (loss) per common share—basic	$	0.71		$	(1.32	)	$	0.05		$	0.08		$	0.22		$	0.14		$	(0.45	)	$	0.36
Net income (loss) per common share—diluted	$	0.71		$	(1.32	)	$	0.05		$	0.07		$	0.21		$	0.13		$	(0.45	)	$	0.36