Investment Securities and Other Investments - Summary of Unrealized Losses (Detail) $ in Thousands	Dec. 31, 2025 USD ($) Security	Dec. 31, 2024 USD ($) Security
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Securities \| Security	197	226
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 8,311	$ 17,480
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(177)	(170)
Available-for-sale Securities, Fair Value, 12 Months or Greater	282,193	293,439
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(40,491)	(55,364)
Fair Value, Total	290,504	310,919
Unrealized Losses, Total	$ (40,668)	$ (55,534)
State and Municipal [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Securities \| Security	57	70
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 679	$ 2,040
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(2)	(42)
Available-for-sale Securities, Fair Value, 12 Months or Greater	39,908	40,531
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(4,728)	(7,254)
Fair Value, Total	40,587	42,571
Unrealized Losses, Total	$ (4,730)	$ (7,296)
U.S. Treasury and Agencies [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Securities \| Security	29	29
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 0	$ 0
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	0	0
Available-for-sale Securities, Fair Value, 12 Months or Greater	72,538	69,453
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(6,290)	(9,975)
Fair Value, Total	72,538	69,453
Unrealized Losses, Total	$ (6,290)	$ (9,975)
Mortgage Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Securities \| Security	80	85
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 5,889	$ 11,637
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(16)	(107)
Available-for-sale Securities, Fair Value, 12 Months or Greater	145,498	152,802
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(27,647)	(34,908)
Fair Value, Total	151,387	164,439
Unrealized Losses, Total	$ (27,663)	$ (35,015)
Corporate Bonds [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Securities \| Security	31	42
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 1,743	$ 3,803
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(159)	(21)
Available-for-sale Securities, Fair Value, 12 Months or Greater	24,249	30,653
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(1,826)	(3,227)
Fair Value, Total	25,992	34,456
Unrealized Losses, Total	$ (1,985)	$ (3,248)

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