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Derivative Financial Instruments (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
USD ($)
item
derivative
Dec. 31, 2023
USD ($)
derivative
Dec. 31, 2022
USD ($)
Notional amount, Assets $ 1,998,266 $ 1,619,026  
Short term advances and brokered CD's $ 950,800 826,800  
Number of derivative contracts terminated | item 3    
Derivative instruments $ 973,900    
Customer [Member]      
Derivative instruments 486,900 360,500  
Bank [Member]      
Derivative instruments 486,900 360,500  
Customer and Bank [Member]      
Derivative instruments   721,000  
Cash Flow Hedging [Member]      
Amount reclassified from accumulated other comprehensive loss to interest expense 25,300 $ 25,400  
Amount to be reclassified from the accumulated comprehensive income (loss) into earnings $ 10,600    
Number of derivative contracts terminated 7 0  
Income recognized $ 1,400 $ 4,700 $ 700
Gain (loss) on termination of swaps 1,700    
Not Designated as Hedging Instrument [Member]      
Notional amount, Assets $ 973,900 722,000  
Designated as Hedging Instrument [Member]      
Number of derivative contracts terminated | item 0    
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]      
Notional amount, Assets $ 950,800 825,800  
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]      
Amount of hedged item 695,600 902,500  
Interest Rate Swap [Member]      
Notional amount, Assets 695,600 902,500  
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]      
Notional amount, Assets 486,929 361,486  
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]      
Notional amount, Assets 950,750 555,000  
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]      
Notional amount, Assets 560,587 702,540  
Available For Sale Security [Member] | Designated as Hedging Instrument [Member]      
Notional amount of derivative instruments terminated 200,000    
Gain (loss) on termination of swaps 3,000    
Notional amount   200,000  
Portfolio Layer Hedges on Closed Portfolio of Securities Available for Sale [Member] | Designated as Hedging Instrument [Member]      
Notional amount, Assets   200,000  
Portfolio Layer Hedges on Closed Portfolio of Loans [Member]      
Notional amount, Assets 500,000    
Portfolio Layer Hedges on Closed Portfolio of Loans [Member] | Designated as Hedging Instrument [Member]      
Notional amount, Assets $ 500,000 $ 500,000