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Note 13 - Geographic Information (Detail) - Property and Equipment by geographic area (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property and Equipment, net
Property and Equipment, net	$ 100,545	$ 87,220
United States [Member]
Property and Equipment, net
Property and Equipment, net	75,156	60,194
United Kingdom [Member]
Property and Equipment, net
Property and Equipment, net	6,568	5,951
Not Connected to a Country [Member]
Property and Equipment, net
Property and Equipment, net	1,505	1,264
Other Countries [Member]
Property and Equipment, net
Property and Equipment, net	$ 17,316	$ 19,811

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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