Employee Benefit Plans (Defined Benefit Pension Plans not Recognized as Component of Combined Net Period Benefit Cost) (Detail) - Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ (30,918)	$ (43,675)
Deferred tax benefit	6,493	9,172
Amounts included in accumulated other comprehensive loss, net of tax	$ (24,425)	$ (34,503)