Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Significant Accounting Policies

Schedule of estimated useful lives of the related assets

Asset Classification	Estimated Useful Life
Buildings	40 years
Machinery and equipment	3 to 10 years

Schedule of components of net income (loss) per share

	Years Ended December 31,
	2012			2011		2010
	(in thousands, except per share data)
Income (loss) available to common stockholders	$	(34,034	)	$	5,077	$	(17,573	)
Weighted average common shares outstanding used in computing basic net income (loss) per share		107,619			106,234		104,522
Incremental shares		—			2,864		—
Weighted average common shares outstanding used in computing diluted net income (loss) per share		107,619			109,098		104,522
Net income (loss) per share
Basic	$	(0.32	)	$	0.05	$	(0.17	)
Diluted	$	(0.32	)	$	0.05	$	(0.17	)