Employee and Director Benefits (Detail) - NQDC Plan	9 Months Ended
	Sep. 30, 2023
Employee
Defined Benefit Plan Disclosure [Line Items]
Maximum percentage of salary	90.00%
Maximum Granted, percentage	65.00%
Maximum percentage of cash bonus compensation	100.00%
Non Employee Director
Defined Benefit Plan Disclosure [Line Items]
Maximum percentage of salary	100.00%