Lease Obligations - Schedule of Right-of-use Asset and Lease Obligations by Type of Property (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Leases Disclosure [Line Items]
Operating Lease, Right-of-Use Asset	$ 3,806	$ 3,291
Operating Leases, Lease Liability	$ 3,806	$ 3,307
Operating Leases, Weighted Average Lease Term in Years	12 years 8 months 12 days	14 years 9 months 18 days
Operating Leases, Weighted Average Discount Rate	3.29%	3.00%
Land and Building Leases [Member]
Leases Disclosure [Line Items]
Operating Lease, Right-of-Use Asset	$ 3,806	$ 3,291
Operating Leases, Lease Liability	$ 3,806	$ 3,307
Operating Leases, Weighted Average Lease Term in Years	12 years 8 months 12 days	14 years 9 months 18 days
Operating Leases, Weighted Average Discount Rate	3.29%	3.00%