Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property and equipment were as follows (in thousands):

	December 31,

	2012			2011
Network equipment	$	53,959		$	44,262
Internally developed software costs		49,854			37,104
Machinery and equipment		18,431			17,755
Computer equipment		15,458			11,656
Leasehold improvements		14,452			5,666
Purchased software		9,742			9,290
Furniture and fixtures		4,898			3,199

		166,794			128,932
Less accumulated depreciation and amortization		(100,625	)		(74,773	)

	$	66,169		$	54,159

- 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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