Property And Equipment, Net (Property And Equipment, Net) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 102,836	$ 98,150
Leasehold improvement	4,466	4,389
Accumulated depreciation and amortization	66,197	61,085
Property and equipment, net	36,639	37,065
Reduction to cost and accumulated depreciation	2,050	1,719
Computer And Peripheral Equipment [Member]
Property, Plant and Equipment [Line Items]
Machinery and equipment, gross	58,779	55,475
Office Furniture And Equipment [Member]
Property, Plant and Equipment [Line Items]
Machinery and equipment, gross	5,728	5,379
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 33,863	$ 32,907

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, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can 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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- Definition

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. 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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