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Investment Securities and Other Investments - Summary of Unrealized Losses (Detail) $ in Thousands	Dec. 31, 2022 USD ($) Security	Dec. 31, 2021 USD ($) Security
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number Of Securities | Security	221	125
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 93,180	$ 285,666
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(8,561)	(6,714)
Available-for-sale Securities, Fair Value, 12 Months or Greater	242,340	1,539
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(50,288)	(8)
Fair Value, Total	335,520	287,205
Unrealized Losses, Total	$ (58,849)	$ (6,722)
State and Municipal [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number Of Securities | Security	82	38
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 18,252	$ 27,905
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(2,178)	(530)
Available-for-sale Securities, Fair Value, 12 Months or Greater	31,530
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(6,847)
Fair Value, Total	49,782	27,905
Unrealized Losses, Total	$ (9,025)	$ (530)
U.S. Treasury and Agencies [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number Of Securities | Security	28	22
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 9,904	$ 64,067
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(1,039)	(1,614)
Available-for-sale Securities, Fair Value, 12 Months or Greater	56,686
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(11,872)
Fair Value, Total	66,590	64,067
Unrealized Losses, Total	$ (12,911)	$ (1,614)
Mortgage Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number Of Securities | Security	78	54
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 39,006	$ 186,924
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(3,061)	(4,257)
Available-for-sale Securities, Fair Value, 12 Months or Greater	148,449	543
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(30,669)	(4)
Fair Value, Total	187,455	187,467
Unrealized Losses, Total	$ (33,730)	$ (4,261)
Corporate Bonds [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number Of Securities | Security	33	11
Available-for-sale Securities, Fair Value, Less Than 12 Months	$ 26,018	$ 6,770
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months	(2,283)	(313)
Available-for-sale Securities, Fair Value, 12 Months or Greater	5,675	996
Available-for-sale Securities, Unrealized Losses, 12 months or Greater	(900)	(4)
Fair Value, Total	31,693	7,766
Unrealized Losses, Total	$ (3,183)	$ (317)

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