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Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Valuation allowance |  |  |  |  |
Provision for (benefit from) income taxes | $ 334 | $ 4,372 | $ 1,297 | $ 4,681 |
Unrecognized tax benefits | 125,900 |  | 125,900 |  | $ 115,700
Portion of unrecognized tax benefits, which if recognized, would be recorded as an income tax benefit | 3,000 |  | 3,000 |  |
Foreign tax authority |  |  |  |  |
Valuation allowance |  |  |  |  |
Income taxes paid | 5,100 | $ 4,500 | 9,600 | $ 8,800 |
State and Local Jurisdiction [Member] | California Franchise Tax Board | Research and development tax credit carryforward |  |  |  |  |
Valuation allowance |  |  |  |  |
Valuation allowance, deferred tax asset, increase (decrease) | (700) |  | (700) |  |
Long-term deferred tax assets |  |  |  |  |
Valuation allowance |  |  |  |  |
Unrecognized tax benefits | 23,400 |  | 23,400 |  | 22,800
Other assets | Foreign tax authority |  |  |  |  |
Valuation allowance |  |  |  |  |
Unrecognized tax benefits | 99,500 |  | 99,500 |  | 91,000
Long-term income taxes payable |  |  |  |  |
Valuation allowance |  |  |  |  |
Unrecognized tax benefits | $ 3,000 |  | $ 3,000 |  | $ 1,800

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