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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Income Tax [Line Items]
Effective income tax expense (benefit) rate	20.40%	20.30%	20.30%	19.90%
Net operating loss carryforwards	$ 62.9		$ 62.9		$ 78.8
UNITED STATES
Income Tax [Line Items]
Statutory income tax rates			21.00%
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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- Definition

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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Income Tax [Line Items]

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- Definition

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

+ References

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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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