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Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax [Line Items]
Effective income tax expense (benefit) rate	143.10%	10.50%	27.80%
Income tax refunds received	$ 0	$ 0	$ 10,987,000
Net operating loss carryforwards	116,400,000	136,100,000
Section 163(j) carryforward	0	0
Interest and penalties for uncertain tax positions	0	$ 0	$ 0
Liabilities for tax-related interest and penalties	$ 0
UNITED STATES
Income Tax [Line Items]
Statutory income tax rates	21.00%
BERMUDA
Income Tax [Line Items]
Statutory income tax rates	0.00%
UNITED KINGDOM
Income Tax [Line Items]
Statutory income tax rates	19.00%
IRELAND | Non Trading Income
Income Tax [Line Items]
Statutory income tax rates	25.00%
IRELAND | Capital Gain
Income Tax [Line Items]
Statutory income tax rates	33.00%
IRELAND | Trading Income
Income Tax [Line Items]
Statutory income tax rates	12.50%

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The foreign statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates.

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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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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 cash received during the period as refunds for the overpayment of taxes.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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