Certain Balance Sheet Components Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Inventories [Line Items]
Materials	$ 123,730	$ 90,557
Work in process	10,193	8,991
Finished goods	80,314	54,956
Total inventories	$ 214,237	$ 154,504