Certain Balance Sheet Components Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014
Inventory [Line Items]
Inventory, Raw Materials, Net of Reserves	$ 111,191				$ 90,557
Inventory, Work in Process, Net of Reserves	9,400				8,991
Inventory, Finished Goods, Net of Reserves	69,874				54,673
Total inventories	$ 190,465	$ 214,237	$ 195,394	$ 168,161	$ 154,221	$ 190,689	$ 192,670	$ 190,105