Other Long-term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Long-term debt	$ 129,555	$ 130,353
Borrowings from FHLB [Member]
Debt Instrument [Line Items]
2015	$ 127,830	$ 799
2015, Weighted Average Contractual Rate	4.19%	3.86%
2016	$ 863	$ 127,830
2016, Weighted Average Contractual Rate	3.87%	4.19%
2017	$ 620	$ 863
2017, Weighted Average Contractual Rate	3.64%	3.87%
2018	$ 242	$ 620
2018, Weighted Average Contractual Rate	3.13%	3.64%
2019	$ 0	$ 241
2019, Weighted Average Contractual Rate	0.00%	3.13%
Thereafter	$ 0	$ 0
Thereafter, Weighted Average Contractual Rate	0.00%	0.00%

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