Pension and Employee Benefit Plans - Components of Pension and Employee Benefit Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	$ (8)	$ 57
Health Care Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	318	304
Expected return on plan assets	(335)	(304)
Amortization of net actuarial loss	$ 9	$ 57