XML 56 R43.htm IDEA: XBRL DOCUMENT v3.24.2.u1
Securities (Summary of Investments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Schedule of Available for Sale and Held to Maturity Securities [Line Items]    
Available for sale debt securities, amortized cost $ 1,117,819 $ 1,152,629
Available for sale debt securities, unrealized gains 93 261
Available for sale debt securities, unrealized losses (166,084) (152,510)
Available for sale debt securities, allowance for credit losses 0 0
Available for sale debt securities, fair value 951,828 1,000,380
Obligations of U.S. government-sponsored enterprises [Member]    
Schedule of Available for Sale and Held to Maturity Securities [Line Items]    
Available for sale debt securities, amortized cost 250,350 250,450
Available for sale debt securities, unrealized gains 13 15
Available for sale debt securities, unrealized losses (25,481) (24,723)
Available for sale debt securities, allowance for credit losses 0 0
Available for sale debt securities, fair value 224,882 225,742
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]    
Schedule of Available for Sale and Held to Maturity Securities [Line Items]    
Available for sale debt securities, amortized cost 844,872 879,597
Available for sale debt securities, unrealized gains 80 246
Available for sale debt securities, unrealized losses (139,563) (125,887)
Available for sale debt securities, allowance for credit losses 0 0
Available for sale debt securities, fair value 705,389 753,956
Individual name issuer trust preferred debt securities    
Schedule of Available for Sale and Held to Maturity Securities [Line Items]    
Available for sale debt securities, amortized cost 9,407 9,400
Available for sale debt securities, unrealized gains 0 0
Available for sale debt securities, unrealized losses (306) (607)
Available for sale debt securities, allowance for credit losses 0 0
Available for sale debt securities, fair value 9,101 8,793
Corporate bonds [Member]    
Schedule of Available for Sale and Held to Maturity Securities [Line Items]    
Available for sale debt securities, amortized cost 13,190 13,182
Available for sale debt securities, unrealized gains 0 0
Available for sale debt securities, unrealized losses (734) (1,293)
Available for sale debt securities, allowance for credit losses 0 0
Available for sale debt securities, fair value $ 12,456 $ 11,889