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, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ (43,675)	$ (41,634)
Deferred tax benefit	9,172	8,743
Amounts included in accumulated other comprehensive loss, net of tax	$ (34,503)	$ (32,891)

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, 2022

Dec. 31, 2021

Defined Benefit Plan Disclosure [Line Items]

Net actuarial loss

$ (43,675)

$ (41,634)

Deferred tax benefit

9,172

8,743

Amounts included in accumulated other comprehensive loss, net of tax

$ (34,503)

$ (32,891)