Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Data

Selected unaudited quarterly financial data for the years 2011 and 2012 are summarized below:

	2011										2012
	First			Second		Third		Fourth			First			Second		Third		Fourth
	Quarter			Quarter		Quarter		Quarter			Quarter			Quarter		Quarter		Quarter
	(in thousands, except per share data)
Net sales	$	72,323			131,930		332,419		141,079		$	73,405		$	145,359	$	314,491	$	133,507
Gross profit	$	24,271			45,092		105,670		18,987		$	23,566		$	46,893	$	96,712	$	30,766
Income (loss) from operations	$	(14,790	)		1,998		50,068		(35,996	)	$	(19,410	)	$	107	$	37,296	$	(31,215	)
Income (loss) before provision (benefit) for income taxes	$	(16,716	)		6,087		48,081		(37,990	)	$	(21,192	)	$	288	$	36,426	$	(34,171	)
Net income (loss)	$	(10,575	)		4,240		34,825		(20,018	)	$	(16,000	)	$	214	$	30,443	$	(119,457	)
Basic earnings (loss) per share	$	(0.39	)		0.16		1.32		(0.77	)	$	(0.62	)	$	0.01	$	1.38	$	(5.45	)
Weighted average shares outstanding		27,217			26,948		26,476		25,839			25,831			25,765		22,110		21,923
Diluted earnings (loss) per share	$	(0.39	)		0.16		1.10		(0.77	)	$	(0.62	)	$	0.01	$	1.10	$	(5.45	)
Weighted average shares and equivalents outstanding		27,217			27,096		32,922		25,839			25,831			25,870		28,933		21,923