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, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ (41,634)	$ (64,343)
Deferred tax benefit	8,743	13,512
Amounts included in accumulated other comprehensive loss, net of tax	$ (32,891)	$ (50,831)