Property and Equipment, Net (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Leasehold improvements	$ 23,986	$ 22,252
Construction in progress		699
Equipment and furniture	19,156	17,032
Property, Plant and Equipment, Gross, Total	43,142	39,983
Less accumulated depreciation and amortization	(35,559)	(33,372)
Property plant and equipment, net	$ 7,583	$ 6,611

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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