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Income Taxes (Details Narrative 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating loss and tax credit carryforwards
Unrecognized tax benefits	$ 146,215	$ 134,044	$ 115,653	$ 23,482
State and local tax authority | California Franchise Tax Board
Operating loss and tax credit carryforwards
Operating loss carryforwards	202,000
Tax credit carryforwards, alternative minimum tax credit	300
State and local tax authority | Other
Operating loss and tax credit carryforwards
Operating loss carryforwards	12,600
Research and development tax credit carryforward | Federal
Operating loss and tax credit carryforwards
Tax credit carryforwards	41,700
Research and development tax credit carryforward | State and local tax authority | California Franchise Tax Board
Operating loss and tax credit carryforwards
Tax credit carryforwards	24,200
Foreign tax credit
Operating loss and tax credit carryforwards
Tax credit carryforwards	85,500
Foreign tax credit | Federal
Operating loss and tax credit carryforwards
Tax credit carryforward, subject to expiration	$ 9,000

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