Income Taxes - Summary of Reconciliation of Statutory Federal Income Tax Provision to Consolidated Actual Income Tax Provision (Parenthetical) (Detail) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Income Tax Rate Reconciliation [Line Items] | |||
| Tax Jurisdiction of Domicile [Extensible Enumeration] | us-gaap:DomesticCountryMember | us-gaap:DomesticCountryMember | us-gaap:DomesticCountryMember |