Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of property and equipment and their respective estimated useful lives

	As of December 31,

	As of December 31,		Estimated Useful Lives
	2011	2010	Estimated Useful Lives

Land	$5,008	$5,231	Indefinite
Leasehold improvements	14,640	10,914	5 - 10 years
Office equipment, furniture and fixtures	6,467	6,151	3 - 7 years
Computer equipment and software costs	67,498	63,441	3 - 9 years
Machinery, equipment and vehicles	48,318	18,593	3 - 45 years

	141,931	104,330
Accumulated depreciation and amortization	51,221	40,224

	$90,710	$64,106

- 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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