XML 82 R67.htm IDEA: XBRL DOCUMENT v3.24.0.1
Investment Securities - Bond Ratings (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost $ 1,283,987 $ 1,289,710
Aaa/AAA    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 278,842  
Aa/AA    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 845,418  
A    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 27,667  
Not rated    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 1,782  
Agency Backed    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 130,278  
State and political subdivisions    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 1,110,424 1,111,693
State and political subdivisions | Aaa/AAA    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 235,557  
State and political subdivisions | Aa/AA    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 845,418  
State and political subdivisions | A    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 27,667  
State and political subdivisions | Not rated    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 1,782  
State and political subdivisions | Agency Backed    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 0  
U.S. government-sponsored enterprises    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 43,285 43,017
U.S. government-sponsored enterprises | Aaa/AAA    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 43,285  
U.S. government-sponsored enterprises | Aa/AA    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 0  
U.S. government-sponsored enterprises | A    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 0  
U.S. government-sponsored enterprises | Not rated    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 0  
U.S. government-sponsored enterprises | Agency Backed    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 0  
U.S. government-sponsored mortgage-backed securities    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 130,278 $ 135,000
U.S. government-sponsored mortgage-backed securities | Aaa/AAA    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 0  
U.S. government-sponsored mortgage-backed securities | Aa/AA    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 0  
U.S. government-sponsored mortgage-backed securities | A    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 0  
U.S. government-sponsored mortgage-backed securities | Not rated    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 0  
U.S. government-sponsored mortgage-backed securities | Agency Backed    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost $ 130,278