Income Taxes - Summary of Reconciliation Between Effective Tax Rate On Income From Continuing Operations (Detail)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.K. provision at statutory rate	19.00%	19.00%	19.00%
Expenses not deductible for tax purposes	3.40%	(1.60%)	0.90%
Return to provision	0.00%	(0.40%)	0.00%
Non-deductible interest expense	0.00%	0.00%	(3.60%)
Stock based compensation	0.00%	(19.70%)	2.60%
Transaction cost adjustment	0.00%	0.00%	(1.40%)
Tax rate change	0.00%	0.30%	0.00%
Foreign rate difference	7.70%	5.30%	0.00%
Change in valuation allowance	(31.10%)	(0.90%)	(21.60%)
Effective tax rate	(1.00%)	2.00%	(4.10%)

Effective income tax rate reconciliation return to provision.

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Subparagraph (SAB Topic 6.I.Fact.4)
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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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.

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Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments.

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