Retirement Plans (Detail) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Jul. 31, 2022	Oct. 31, 2021	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Retirement Benefits [Abstract]
Defined benefit plan, contributions by employer		$ 500
Supplemental benefit plan liability	$ 2,900	2,900		$ 2,900
Deferred compensation liability	3,500	$ 3,400		3,500
Net periodic benefit cost:
Service cost	215		$ 212	645	$ 637
Interest cost	201		189	604	567
Expected return on plan assets	(498)		(490)	(1,493)	(1,470)
Amortization of net loss	2		36	5	108
Net periodic pension benefit	$ (80)		$ (53)	$ (239)	$ (158)