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Income Taxes - Schedule of Reconciliation of Standard U.K. Statutory Income Tax Rate to Effective Tax Rate (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income tax using U.K. statutory rate	(19.00%)	(25.00%)	(25.00%)	(23.50%)	(19.00%)
Income not taxable			(7.50%)	(4.30%)	(2.70%)
Effect of overseas tax rate			(0.70%)	(0.60%)	(1.40%)
Change in valuation allowances			34.70%	29.40%	23.10%
Effect of overseas taxes			0.50%	0.90%	0.40%
Effective tax rate for loss from continuing operations			1.90%	1.90%	0.40%

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Effective income tax rate reconciliation effect of overseas tax

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

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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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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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