Derivative Financial Instruments - Offsetting of Derivative Assets and Liabilities (Detail) - Zero Cost Collars [Member] - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Asset Derivatives:
Gross amounts of recognized assets	$ 152
Gross amounts offset in the balance sheets	0
Net amounts of liabilities presented in the balance sheets	152	$ 0
Gross amounts not offset in the balance sheets, Financial instruments	0
Gross amounts not offset in the balance sheets, Cash collateral pledged	0
Net amount	152
Liability Derivatives:
Gross amounts of recognized liabilities	1	2,015
Gross amounts offset in the balance sheets	0	0
Net amounts of liabilities presented in the balance sheets	1	2,015
Gross amounts not offset in the balance sheets, Financial instruments	0	0
Gross amounts not offset in the balance sheets, Cash collateral pledged	0	(1,940)
Net amount	$ 1	$ 75