Property And Equipment

12 Months Ended

Dec. 31, 2011

5. Property and equipment

Property and equipment consisted of the following (in thousands):


	December 31,
	2011			2010
Leasehold improvements	$	18,818		$	12,540
Laboratory equipment		15,377			13,763
Computers and office equipment		5,590			4,419
Furniture and fixtures		4,691			3,131

		44,476			33,853
Less: accumulated depreciation and amortization		(24,824	)		(21,542	)

Total	$	19,652		$	12,311

Depreciation and amortization expenses on property and equipment totaled $3.9 million, $3.6 million and $3.3 million for the years ended December 31, 2011, 2010 and 2009, respectively.

- 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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