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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Income (Loss) Before Provision for Income Taxes

For the years ended December 31, 2021, 2020 and 2019, the income (loss) before provision for income taxes consist of the following (in thousands):

		Years Ended December 31,
		2021				2020				2019
Domestic		$	4,569			$	7,630			$	9,155
Foreign			374,962				(355,686	)			58,151
Total		$	379,531			$	(348,056	)		$	67,306

Schedule of (Provision for) Benefit from Income Taxes

The (provision for) benefit from income taxes consist of the following (in thousands):

		Years Ended December 31,
		2021				2020				2019
Current income taxes:
Federal		$	(80	)		$	(248	)		$	(423	)
State			(42	)			(151	)			(59	)
Foreign			—				(1	)			0
Total current income taxes			(122	)			(400	)			(482	)
Deferred income taxes:
Federal			(1,748	)			(409	)			34
State			—				—				—
Foreign			—				—				—
Total deferred income taxes			(1,748	)			(409	)			34
Total income tax (provision) benefit		$	(1,870	)		$	(809	)		$	(448	)

Schedule of Reconciliation of Income Tax Expense Computed at Statutory Corporate Income Tax Rate to Effective Income Tax Rate

A reconciliation of income tax expense computed at the statutory corporate income tax rate to the effective income tax rate for the years ended December 31, 2021, 2020 and 2019 is as follows:

		Years Ended December 31,
		2021				2020				2019
Income tax expense at statutory rate			11.9	%			11.9	%			9.3	%
State income tax, net of federal benefit			(1.0	)%			1.0	%			(2.1	)%
Nondeductible expenses			0.7	%			0.1	%			(0.1	)%
Foreign rate differential			0.6	%			(0.1	)%			2.0	%
Statutory to US GAAP permanent differences			0.0	%			0.0	%			0.1	%
Stock-based compensation			(2.5	)%			2.3	%			(2.0	)%
Impact of deferred rate change			0.0	%			0.0	%			(12.2	)%
Research credits			(4.2	)%			3.3	%			(5.2	)%
Change in valuation allowance			(5.0	)%			(18.7	)%			10.9	%
Effective income tax rate			0.5	%			(0.2	%)			0.7	%

Schedule of Significant Components of Company's Deferred Tax Assets

Deferred taxes are recognized for temporary differences between the basis of assets and liabilities for financial statement and income tax purposes. The significant components of the Company’s deferred tax assets are comprised of the following (in thousands):

		Years Ended December 31,
		2021				2020
Deferred tax assets:
Net operating loss carryforwards		$	47,190			$	84,531
Accruals and reserves			5,878				4,785
Operating lease liabilities			61,476				16,782
Other deferred tax assets			6,362				1,517
Stock-based compensation			14,042				9,605
Deferred revenue			—				86
Research credit			37,878				19,526
Total deferred tax assets			172,826				136,832
Less valuation allowance			(98,649	)			(116,640	)
Net deferred tax assets			74,177				20,192
Deferred tax liabilities:
Depreciation			(28,579	)			(6,778	)
Operating lease assets			(47,521	)			(13,776	)
Intangible assets			(31	)			(31	)
Other deferred tax liabilities			(192	)			(4	)
Total deferred tax liabilities			(76,323	)			(20,589	)
Long term deferred taxes		$	(2,146	)		$	(397	)

Schedule of Aggregate Changes in Gross Unrecognized Tax Benefits

The aggregate changes in gross unrecognized tax benefits were as follows (in thousands):

		Years Ended December 31,
		2021				2020				2019
Balance at beginning of year		$	11,967			$	5,231			$	1,595
Increases for tax positions taken during current period			9,911				7,004				2,754
Increases for tax positions taken in prior periods			—				—				882
Decreases for tax positions taken during current period			—				—				—
Decreases for tax positions taken in prior periods			(483	)			(268	)			—
Balance at end of year		$	21,395			$	11,967			$	5,231

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure of the change in unrecognized tax benefits.

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