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Pension and Employee Benefit Plans - Schedule of Net Periodic Benefit Cost For Pension Benefits Included in the Accompanying Consolidated Statements of Income (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Health Care Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Interest cost $ 1,215 $ 1,274 $ 877
Expected return on plan assets (1,223) (1,142) (1,560)
Amortization of net loss 226 297 263
Pension Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Interest cost 1,215 1,274 877
Net periodic benefit income (expense) $ 218 $ 429 $ (420)