Investment Securities and Other Investments - Summary of Unrealized Losses (Detail) $ in Thousands	Jun. 30, 2026 USD ($) Security	Dec. 31, 2025 USD ($) Security
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Securities \| Security	212	197
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 39,599	$ 8,311
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(697)	(177)
Available-for-sale Securities, Fair Value, 12 Months or Greater	264,434	282,193
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(40,815)	(40,491)
Fair Value, Total	304,033	290,504
Unrealized Losses, Total	$ (41,512)	$ (40,668)
Mortgage Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Securities \| Security	102	80
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 34,191	$ 5,889
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(660)	(16)
Available-for-sale Securities, Fair Value, 12 Months or Greater	137,858	145,498
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(27,969)	(27,647)
Fair Value, Total	172,049	151,387
Unrealized Losses, Total	$ (28,629)	$ (27,663)
U.S. Treasury and Agencies [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Securities \| Security	28	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	69,401	72,538
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(6,476)	(6,290)
Fair Value, Total	69,401	72,538
Unrealized Losses, Total	$ (6,476)	$ (6,290)
State and Municipal [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Securities \| Security	55	57
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 1,928	$ 679
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(17)	(2)
Available-for-sale Securities, Fair Value, 12 Months or Greater	38,103	39,908
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(4,942)	(4,728)
Fair Value, Total	40,031	40,587
Unrealized Losses, Total	$ (4,959)	$ (4,730)
Corporate Bonds [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Securities \| Security	27	31
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 3,480	$ 1,743
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(20)	(159)
Available-for-sale Securities, Fair Value, 12 Months or Greater	19,072	24,249
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(1,428)	(1,826)
Fair Value, Total	22,552	25,992
Unrealized Losses, Total	$ (1,448)	$ (1,985)

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