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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended |
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Dec. 31, 2023 | Dec. 31, 2022
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |
Valuation allowance, Operating loss and credit carryovers | $ 98 | $ 79
Minimum [Member] |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |
Statute of limitation period for open tax reviews | 3 years |
Maximum [Member] |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |
Statute of limitation period for open tax reviews | 4 years |

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- Definition The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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