Balance Sheet Components Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Notes To Financial Statements [Abstract]
Accrued payroll and benefits	$ 87,526	$ 162,486
Accrued expenses	50,669	55,529
Operating Lease, Liability, Current	20,225	15,737
Others	18,781	9,167
Other Accrued Liabilities, Current	54,196	52,499
Total accrued liabilities	259,459	319,958
Accrued Income Taxes	15,324	14,130
Accrued Professional Fees	$ 12,738	$ 10,410