Derivative Financial Instruments - Classification on the balance sheet for the periods indicated (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Disclosure Of Fair Value Of Derivative Instruments And Their Balance Sheet Classification [Line Items]
Derivative Asset	$ 26,344	$ 23,861
Net Amount	93,585	81,422
Asset Derivatives
Disclosure Of Fair Value Of Derivative Instruments And Their Balance Sheet Classification [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	15	16
Derivatives not designated as hedging instruments, Interest rate swaps, Other assets	25,236	23,567
Derivatives not designated as hedging instruments, Other assets	26,329	23,845
Asset Derivatives | Risk participation agreements
Disclosure Of Fair Value Of Derivative Instruments And Their Balance Sheet Classification [Line Items]
Derivatives not designated as hedging instruments, Other assets	47	78
Asset Derivatives | Foreign currency exchange contracts - matched customer book
Disclosure Of Fair Value Of Derivative Instruments And Their Balance Sheet Classification [Line Items]
Derivatives not designated as hedging instruments, Other assets	785	198
Asset Derivatives | Foreign currency exchange contracts - foreign currency loan
Disclosure Of Fair Value Of Derivative Instruments And Their Balance Sheet Classification [Line Items]
Derivatives not designated as hedging instruments, Other assets	261	2
Liability Derivatives
Disclosure Of Fair Value Of Derivative Instruments And Their Balance Sheet Classification [Line Items]
Derivative Instruments in Hedges, Liabilities, at Fair Value	367	2,417
Derivative not designated as hedging instruments, Interest rate swaps, Other liabilities	92,409	78,577
Derivatives not designated as hedging instruments, Other liabilities	93,218	79,005
Liability Derivatives | Risk participation agreements
Disclosure Of Fair Value Of Derivative Instruments And Their Balance Sheet Classification [Line Items]
Derivatives not designated as hedging instruments, Other liabilities	45	130
Liability Derivatives | Foreign currency exchange contracts - matched customer book
Disclosure Of Fair Value Of Derivative Instruments And Their Balance Sheet Classification [Line Items]
Derivatives not designated as hedging instruments, Other liabilities	763	205
Liability Derivatives | Foreign currency exchange contracts - foreign currency loan
Disclosure Of Fair Value Of Derivative Instruments And Their Balance Sheet Classification [Line Items]
Derivatives not designated as hedging instruments, Other liabilities	$ 1	$ 93