Balance Sheet Components (Schedule Of Intangibles, Net) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Purchased Intangible Assets [Line Items]
Gross	$ 128,044	$ 55,129
Accumulated Amortization	(44,026)	(28,508)
Finite-lived intangibles, net	84,018	26,621
Indefinite-lived intangible assets	100	1,000
Intangibles, net	84,118	27,621
Technology [Member]
Purchased Intangible Assets [Line Items]
Gross	60,999	32,259
Accumulated Amortization	(29,593)	(22,065)
Finite-lived intangibles, net	31,406	10,194
Customer Contracts And Relationships [Member]
Purchased Intangible Assets [Line Items]
Gross	56,500	16,000
Accumulated Amortization	(9,120)	(3,301)
Finite-lived intangibles, net	47,380	12,699
Other [Member]
Purchased Intangible Assets [Line Items]
Gross	10,545	6,870
Accumulated Amortization	(5,313)	(3,142)
Finite-lived intangibles, net	$ 5,232	$ 3,728