v3.22.0.1

Income Taxes - Effective Tax Rate Reconciliation (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Tax Disclosure [Abstract] |  |  |
Expected income tax expense at federal statutory rate | 21.00% | 21.00% | 21.00%
State taxes, net of federal benefits | (0.70%) | 0.00% | (0.20%)
Foreign tax rate differential | (5.10%) | (0.50%) | (19.50%)
Stock-based compensation | 282.40% | 7.10% | (0.90%)
Acquisition related expenses | 0.00% | 0.00% | (0.30%)
Deferred tax impacts of restructuring | (9.70%) | 6.50% | 0.00%
Other statutorily non-deductible expenses | (1.10%) | (0.30%) | (2.60%)
Non-deductible warrant revaluations | (20.40%) | (3.90%) | 0.00%
Research and development credits | 51.00% | 4.30% | (0.90%)
Uncertain tax positions—prior year positions | (3.10%) | (0.10%) | (53.00%)
Uncertain tax positions—current year positions | (1.00%) | (0.20%) | (4.20%)
Other | 1.30% | 0.30% | 0.20%
Change in valuation allowance | (331.90%) | (32.10%) | (3.40%)
Effective tax rate | (17.30%) | 2.10% | (63.80%)

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