CONSOLIDATED FINANCIAL STATEMENT DETAILS (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Property and equipment
Property and equipment, gross	$ 538,741	$ 503,423
Accumulated depreciation and amortization	(245,459)	(232,911)
Property and equipment, net	293,282	270,512
Buildings and leasehold improvements
Property and equipment
Property and equipment, gross	245,639	238,652
Computer equipment and capitalized software
Property and equipment
Property and equipment, gross	207,543	197,402
Furniture and other equipment
Property and equipment
Property and equipment, gross	44,253	42,949
Projects in progress
Property and equipment
Property and equipment, gross	36,189	19,303
Land
Property and equipment
Property and equipment, gross	$ 5,117	$ 5,117

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount 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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- Definition

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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