XML 71 R56.htm IDEA: XBRL DOCUMENT v3.24.0.1
Investments (Unrealized Gross Losses and Estimated Fair values of Investment Securities by Length of Time that Individual Securities in Each Category in Continuous Loss Position) (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
security
Dec. 31, 2022
USD ($)
security
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security 205 335
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 35,439 $ 215,593
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 74 16,957
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 488,825 457,955
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 78,848 84,273
Debt Securities, Available-for-sale, Unrealized Loss Position 524,264 673,548
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss $ 78,922 $ 101,230
Obligations of states and political subdivisions    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security 6 83
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 2,345 $ 42,276
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 6 463
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 1,437 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 38 0
Debt Securities, Available-for-sale, Unrealized Loss Position 3,782 42,276
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss $ 44 $ 463
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security 145 175
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 13,474 $ 118,290
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 23 11,521
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 407,200 381,355
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 65,955 73,436
Debt Securities, Available-for-sale, Unrealized Loss Position 420,674 499,645
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss $ 65,978 $ 84,957
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security 43 64
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 19,620 $ 47,340
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 45 4,589
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 62,869 62,007
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 9,492 8,824
Debt Securities, Available-for-sale, Unrealized Loss Position 82,489 109,347
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss $ 9,537 $ 13,413
Subordinated corporate bonds    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security 11 13
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 0 $ 7,687
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 384
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 17,319 14,593
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 3,363 2,013
Debt Securities, Available-for-sale, Unrealized Loss Position 17,319 22,280
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss $ 3,363 $ 2,397