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Investment Securities (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Investment [Line Items]      
Schedule of Repurchase Agreement Counterparties with Whom Repurchase Agreements Exceed 10 Percent of Stockholders' Equity [Table Text Block] $ 0    
Percentage of amount greater than shareholder's equity 10.00%    
Debt Securities, Available for Sale, Sold at Gain, Amortized Cost Amount $ 2,300,000   $ 0
Debt Securities, Available for Sale, Sold at Loss, Amortized Cost Amount 42,300,000 $ 291,000,000.0  
Debt Securities, Available-for-sale, Realized Loss 553,000 7,900,000  
Gain on equity securities, net 3,080,000 971,000 2,955,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 700,469,000 1,150,640,000  
Debt Securities, Available-for-sale, Allowance for Credit Loss 0 0  
Debt Securities, Available-for-sale, Unrealized Loss Position 786,464,000 1,206,855,000  
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 80,085,000 87,155,000  
Debt Securities, Available-for-sale 996,624,000 1,332,842,000  
Debt Securities, Available-for-sale, Amortized Cost 1,076,281,000 1,418,770,000  
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount 571,000 0  
Payments to Acquire Federal Home Loan Bank Stock 9,225,000 $ 18,228,000 $ 0
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount $ 1,400,000    
equity investment purchased, shares 92,245 182,289 0
Debt Securities, Available-for-Sale, Realized Gain $ 27,000    
Equity Method Investment, Other-than-Temporary Impairment 0 $ 0 $ 0
Deposits      
Investment [Line Items]      
Debt Securities, Available-for-sale, Amortized Cost 471,200,000 416,000,000.0  
Securities Sold under Agreements to Repurchase [Member]      
Investment [Line Items]      
Debt Securities, Available-for-sale 124,100,000 180,800,000  
Debt Securities, Available-for-sale, Amortized Cost 124,100,000 180,800,000  
Federal Home Loan Bank Advances [Member]      
Investment [Line Items]      
Debt Securities, Available-for-sale, Amortized Cost 3,900,000 5,200,000  
US Government-sponsored Enterprises Debt Securities      
Investment [Line Items]      
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0    
Debt Securities, Available-for-sale, Unrealized Loss Position 249,000    
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 1,000    
Debt Securities, Available-for-sale 249,000    
Debt Securities, Available-for-sale, Amortized Cost 250,000    
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]      
Investment [Line Items]      
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 510,846,000 634,261,000  
Debt Securities, Available-for-sale, Unrealized Loss Position 517,401,000 634,261,000  
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 61,694,000 68,193,000  
Debt Securities, Available-for-sale 518,576,000 635,475,000  
Debt Securities, Available-for-sale, Amortized Cost 580,268,000 703,645,000  
Obligations of U.S. Treasury and other U.S. Government sponsored entities      
Investment [Line Items]      
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 61,700,000    
Investments [Member]      
Investment [Line Items]      
Gain on equity securities, net $ 2,600,000 $ 600,000 $ 601,000