Certain Balance Sheet Components Summary of the Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Summary of Allowance for Doubtful Accounts Activity [Line Items]
Beginning balance	$ 5,939	$ 8,758	$ 6,195	$ 8,368
Valuation Allowances and Reserves, Adjustments	(239)	(795)	30	(189)
Accounts written-off	(325)	(558)	(341)	(790)
EffectsOfChangeInExchangeRates	47	(50)	(462)	(34)
Ending balance	$ 5,422	$ 7,355	$ 5,422	$ 7,355