Property and Equipment

12 Months Ended

Dec. 31, 2013

Property and equipment at December 31, 2013 and 2012 are as follows:



	Estimated Useful Lives		As of December 31,
	In Years		2013			2012
			(in thousands)
Computers and software	3-5		$	11,180		$	11,042
Furniture and fixtures	5-7		7,315			7,343
Laboratory equipment	3-7		34,952			36,065
Leasehold improvements	7-10		8,092			9,991
Buildings	15-40		59,104			58,945
Land		—	2,664			2,664
Total property and equipment			123,307			126,050
Less: Accumulated depreciation and amortization			(81,945		)	(83,416		)
Net property and equipment			$	41,362		$	42,634

During the year ended December 31, 2011, the Company determined that one of its buildings was impaired and therefore recorded an impairment loss of $800,000, which was recorded as research and development expense in the accompanying statement 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 used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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