v3.25.1
Securities, Available for Sale (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Debt securities, available-for-sale [Abstract]      
Amortized cost $ 1,842,664   $ 1,739,299
Unrealized gains 1,500   251
Unrealized losses (139,487)   (164,886)
Estimated fair value 1,704,677   1,574,664
Allowance for credit losses on AFS securities 0   0
Gross realized gains 0    
Gross realized losses 0    
Gain recognized on sale of previously written-off security   $ 2,300  
U.S. Treasury [Member]      
Debt securities, available-for-sale [Abstract]      
Amortized cost 108,965   108,838
Unrealized gains 52   59
Unrealized losses (4,790)   (6,107)
Estimated fair value 104,227   102,790
Federal Agency [Member]      
Debt securities, available-for-sale [Abstract]      
Amortized cost 248,339   248,348
Unrealized gains 0   0
Unrealized losses (24,910)   (29,831)
Estimated fair value 223,429   218,517
State & Municipal [Member]      
Debt securities, available-for-sale [Abstract]      
Amortized cost 95,257   95,457
Unrealized gains 0   0
Unrealized losses (6,555)   (7,967)
Estimated fair value 88,702   87,490
Mortgage-Backed, Government Sponsored Enterprises [Member]      
Debt securities, available-for-sale [Abstract]      
Amortized cost 449,327   435,825
Unrealized gains 338   2
Unrealized losses (34,432)   (41,528)
Estimated fair value 415,233   394,299
Mortgage-Backed, U.S. Government Agency Securities [Member]      
Debt securities, available-for-sale [Abstract]      
Amortized cost 92,529   76,528
Unrealized gains 207   9
Unrealized losses (4,892)   (6,471)
Estimated fair value 87,844   70,066
Collateralized Mortgage Obligations, Government-Sponsored Enterprises [Member]      
Debt securities, available-for-sale [Abstract]      
Amortized cost 603,719   546,685
Unrealized gains 821   142
Unrealized losses (36,555)   (42,831)
Estimated fair value 567,985   503,996
Collateralized Mortgage Obligations, U.S. Government Agency Securities [Member]      
Debt securities, available-for-sale [Abstract]      
Amortized cost 196,036   179,136
Unrealized gains 82   39
Unrealized losses (24,645)   (26,683)
Estimated fair value 171,473   152,492
Corporate [Member]      
Debt securities, available-for-sale [Abstract]      
Amortized cost 48,492   48,482
Unrealized gains 0   0
Unrealized losses (2,708)   (3,468)
Estimated fair value $ 45,784   $ 45,014