Property and Equipment

12 Months Ended

Dec. 31, 2012

Property and equipment at December 31, 2012 and 2011 are as follows:



	Estimated Useful Lives		As of December 31,
	In Years		2012			2011
			(in thousands)
Computers and software	3-5		$	11,042		$	10,986
Furniture and fixtures	5-7		7,343			7,391
Laboratory equipment	3-7		36,065			37,030
Leasehold improvements	7-10		9,991			9,934
Buildings	15-40		58,945			58,947
Land		—	2,664			2,664
Total property and equipment			126,050			126,952
Less: Accumulated depreciation and amortization			(83,416		)	(80,535		)
Net property and equipment			$	42,634		$	46,417

During the years ended December 31, 2011 and 2010, the Company determined that one of its buildings was impaired and therefore recorded impairment losses of $800,000 and $900,000, respectively, which were recorded as research and development expense in the accompanying statements of comprehensive loss. The fair value of the impaired building was estimated using sales prices in similar real estate sales and offers received from potential purchasers of the building. In June 2011, the Company sold this building with an immaterial additional loss on the sale.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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