Income Taxes - Summary of Reconciliation of Statutory Federal Income Tax Provision to Consolidated Actual Income Tax Provision (Parenthetical) (Detail) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Income Tax Rate Reconciliation [Line Items] | ||||
| Tax Jurisdiction of Domicile [Extensible Enumeration] | us-gaap:DomesticCountryMember | us-gaap:DomesticCountryMember | us-gaap:DomesticCountryMember | us-gaap:DomesticCountryMember |