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Income Taxes - Schedule Of Disaggregation Of Income Taxes Paid Net Of Refunds (Parenthetical) (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Income Taxes [Line Items] |  |  |
Income Tax Credits and Adjustments | $ 11,680 | $ 1,636 |
Income Taxes Paid, Net | $ 114,463 | $ 86,221 | $ 105,460
Percentage Of Income Tax Paid Net | 5.00% | 5.00% | 5.00%
Maryland [Member] |  |  |
Income Taxes [Line Items] |  |  |
Income Taxes Paid, Net | $ 5,950 | $ 6,150 |
West Virginia [Member] |  |  |
Income Taxes [Line Items] |  |  |
Income Taxes Paid, Net | $ 9,000 |  | $ 6,851

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