Property and Equipment

12 Months Ended

Dec. 31, 2011

Note 4. Property and Equipment

The following table summarizes the Company's property and equipment as of the dates indicated:

	December 31,

	2011			2010
	(In thousands)
Laboratory equipment	$	18,586		$	16,390
Computer equipment		5,472			3,961
Computer software—internal use		1,895			1,335
Furniture and fixtures		3,239			2,662
Leasehold improvements		14,022			13,082
Construction in progress		513			269

		43,727			37,699
Less accumulated depreciation and amortization		(34,284	)		(27,354	)

Total	$	9,443		$	10,345

For the years ended December 31, 2011, 2010 and 2009, the Company recorded property and equipment depreciation and amortization expense of $7.1 million, $7.0 million and $6.5 million, 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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