Pension Plan - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Sep. 30, 2022	May 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Employees covered under noncontributory Pension Plan		13.00%
Compensation period preceding retirement and termination		5 years
Period used for calculating Pension Plan liability		25 years
Contribution to avoid a Pension Benefit Guaranty Corporation variable premium	$ 2.0
Unfunded pension liability		$ 0.7
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contributions		1.5
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contributions		$ 3.0