Income taxes.

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Percentage of post-TCJA losses taxable income limitation.

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- Definition

Post-TCJA operating loss carry forwards.

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No definition available.

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Pre-TCJA losses carry forwards period.

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Pre-TCJA operating loss carry forwards.

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount 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 increase (decrease) in the income tax rates.

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of unrecognized tax benefits.

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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands			12 Months Ended
	Jun. 10, 2021	Jun. 09, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2017	Dec. 31, 2020
Income Taxes [Line Items]
Tax benefit (expense) computed at the federal statutory rate			21.00%	21.00%	21.00%
Change in enacted tax rate, amount					$ 188,900
Deferred tax assets, valuation allowance			$ 4,471,571	$ 4,060,943
Unrecognized tax benefits			513,404	510,669	$ 469,573		$ 344,971
Other Liabilities
Income Taxes [Line Items]
Unrecognized tax benefits			27,300	$ 21,700
U.K.
Income Taxes [Line Items]
Tax benefit (expense) computed at the federal statutory rate	25.00%	19.00%
Net operating loss carry-forwards			$ 4,500,000
Percentage of taxable income limitation			50.00%
Federal
Income Taxes [Line Items]
Net operating loss carry-forwards			$ 6,700,000
Pre-tax act operating loss carry-forwards						$ 500,000
Pre-tax act operating loss carry-forwards period						20 years
Post-tax act operating loss carry-forwards			$ 6,200,000
Percentage of taxable income limitation			80.00%
Federal \| Research
Income Taxes [Line Items]
Accumulated research tax credits			$ 816,600
State
Income Taxes [Line Items]
Net operating loss carry-forwards			4,500,000
State \| Research
Income Taxes [Line Items]
Accumulated research tax credits			$ 478,900