Balance Sheet Components - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Balance Sheet Components [Abstract]
Inventory deposit	$ 39,296	$ 60,315
Prepaid income taxes	34,386	17,383
Other current assets	112,216	79,140
Other prepaid expenses and deposits	11,837	11,846
Total prepaid expenses and other current assets	$ 197,735	$ 168,684