Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2012

Property, Plant and Equipment [Abstract]

Property and equipment, which includes assets under capital lease, consists of the following:



	September 30,			December 31,
	2012			2011
	(in thousands)
Computer equipment	$	17,144		$	12,483
Computer software	5,913			5,720
Furniture, fixtures and equipment	1,438			1,330
Scanner appliances	15,894			13,394
Leasehold improvements	1,623			1,418
Total property and equipment	42,012			34,345
Less: accumulated depreciation and amortization	(25,116		)	(20,484		)
Property and equipment, net	$	16,896		$	13,861

- Definition

Tabular disclosure of the useful life and salvage value of 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.

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