Certain Balance Sheet Components Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Inventory [Line Items]
Inventory, Raw Materials, Net of Reserves	$ 103,274	$ 111,191
Inventory, Work in Process, Net of Reserves	7,925	9,400
Inventory, Finished Goods, Net of Reserves	51,850	69,874
Total inventories	$ 163,049	$ 190,465