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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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- Definition 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 + Details
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