Pension Information - Components of Net Periodic Pension Cost (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Retirement Benefits [Abstract]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	125	103	376	310
Expected return on plan assets	(132)	(144)	(397)	(432)
Other components	0	69		208
Net periodic pension cost	$ (7)	$ 28	$ (21)	$ 86