Income Taxes - Schedule of Tax Rate Differences (Details)	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Statutory federal tax rate	21.00%	21.00%	21.00%
State income taxes, net of federal benefit	1.00%	2.00%	6.00%
Research and development and other tax credits	0.00%	1.00%	1.00%
Non-deductible expenses	0.00%	(1.00%)	(2.00%)
Non-cash stock-based compensation	(1.00%)	(1.00%)	4.00%
U.S. taxation of foreign operations	(4.00%)	(3.00%)	0.00%
Cancellation of Indebtedness	(1.00%)	0.00%	(1.00%)
Non-US tax credits	4.00%	0.00%	0.00%
Other	0.00%	2.00%	(1.00%)
Change in tax rate	0.00%	(20.00%)	0.00%
Change in valuation allowance	(20.00%)	(2.00%)	(30.00%)
Income tax expense	0.00%	(1.00%)	(2.00%)

Effective Income Tax Rate Reconciliation, Cancellation Of Indebtedness, Percent

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Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Non-Cash Share-Based Payment Arrangement, Percent

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Effective Income Tax Rate Reconciliation, US Taxation Of Foreign Operations

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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-Topic 235
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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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