Balance Sheet Components (Schedule Of Property And Equipment, Net) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Total property and equipment, gross	$ 88,774	$ 73,651
Accumulated depreciation and amortization	(62,377)	(54,626)
Total property and equipment, net	26,397	19,025
Computer Equipment [Member]
Total property and equipment, gross	7,699	7,290
Furniture, Fixtures And Leasehold Improvements [Member]
Total property and equipment, gross	13,125	12,761
Software [Member]
Total property and equipment, gross	23,790	21,521
Machinery And Equipment [Member]
Total property and equipment, gross	43,366	31,694
Construction in Progress [Member]
Total property and equipment, gross	$ 794	$ 385

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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