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Debt Securities Held to Maturity - Narrative (Details)
12 Months Ended
Dec. 31, 2022
USD ($)
security
Dec. 31, 2021
USD ($)
security
Dec. 31, 2020
USD ($)
Schedule of Held-to-maturity Securities [Line Items]      
Amortized Cost $ 421,523,000 $ 429,734,000  
Debt securities held to maturity 370,391,000 434,789,000  
Proceeds from sale and maturity of held-to-maturity securities 0    
Proceeds from sale of held-to-maturity securities   0 $ 0
Proceeds from calls of debt securities, held-to-maturity   5,100,000 20,000,000
Debt securities, held-to-maturity, realized gain (loss)   0 $ 0
Securities available-for-sale sold under agreements $ 228,800,000 $ 252,400,000  
Number of unrealized loss positions | security 116 25  
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Accrued interest receivable    
Accrued interest receivable on debt securities held-to-maturity $ 1,000,000    
Mortgage-backed securities and collateralized mortgage obligations      
Schedule of Held-to-maturity Securities [Line Items]      
Amortized Cost 371,652,000 $ 384,864,000  
Debt securities held to maturity $ 327,824,000 $ 390,678,000