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Derivative Financial Instruments - Summary of Location and Fair Value of Derivative Instruments (Details)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2024
USD ($)
Instrument
Dec. 31, 2023
USD ($)
Instrument
Derivatives not designated as hedging instruments, fair value    
Derivative Asset, Fair Value $ 42,539 $ 55,597
Derivative Liability, Fair Value $ 45,399 $ 51,949
Interest Rate Swap Agreements on Loans with Commercial Loan Customers | Not Designated as Hedging Instrument    
Derivatives not designated as hedging instruments, fair value    
Derivative Asset, Number of Instruments | Instrument 33 25
Derivative Asset, Notional Amount $ 377,041 $ 249,454
Derivative Asset, Weighted Average Maturity 5 years 1 month 13 days 6 years 3 months 29 days
Derivative Asset, Fair Value $ 11,352 $ 7,904
Derivative Liability, Number of Instruments Held | Instrument 73 81
Derivative Liability, Notional Amount $ 598,803 $ 689,702
Derivative Liability, Weighted Average Maturity 5 years 8 months 23 days 5 years 11 months 15 days
Derivative Liability, Fair Value $ 39,796 $ 51,138
Interest Rate Swap Agreements on Loans with Third-party Counter Parties | Not Designated as Hedging Instrument    
Derivatives not designated as hedging instruments, fair value    
Derivative Asset, Number of Instruments | Instrument 106 106
Derivative Asset, Notional Amount $ 975,845 $ 939,156
Derivative Asset, Weighted Average Maturity 5 years 5 months 26 days 6 years 21 days
Derivative Asset, Fair Value $ 28,444 $ 43,234
Interest Rate Swap Related to AFS Securities | Designated as Hedging Instrument    
Derivatives not designated as hedging instruments, fair value    
Derivative Asset, Number of Instruments | Instrument 11 11
Derivative Asset, Notional Amount $ 12,500 $ 12,500
Derivative Asset, Weighted Average Maturity 7 years 6 months 10 days 8 years 3 months 10 days
Derivative Asset, Fair Value $ 601 $ 624
Interest Rate Swap Related to Wholesale Funding | Designated as Hedging Instrument    
Derivatives not designated as hedging instruments, fair value    
Derivative Asset, Number of Instruments | Instrument 6 9
Derivative Asset, Notional Amount $ 68,400 $ 96,400
Derivative Asset, Weighted Average Maturity 2 years 6 months 18 days 2 years 5 months 19 days
Derivative Asset, Fair Value $ 2,142 $ 3,835
Derivative Liability, Number of Instruments Held | Instrument 41 29
Derivative Liability, Notional Amount $ 431,255 $ 306,255
Derivative Liability, Weighted Average Maturity 3 years 9 months 7 days 3 years 10 months 20 days
Derivative Liability, Fair Value $ 5,603 $ 811