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Securities - Continuous Unrealized Loss Position (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
USD ($)
security
Dec. 31, 2022
USD ($)
security
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Number of Holdings with unrealized losses 521 530
Less Than 12 Months, Fair Value $ 95,041 $ 298,369
Less Than 12 Months, Unrealized Losses (1,320) (16,312)
12 Months or Greater, Fair Value 378,544 165,296
12 Months or Greater, Unrealized Losses (46,522) (34,411)
Fair Value 473,585 463,665
Unrealized Losses $ (47,842) $ (50,723)
Percentage debt securities with aggregate depreciation from amortized cost basis 9.20% 9.90%
Allowance for available for sale securities $ 0  
Accrued interest receivable on securities $ 4,900  
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Interest Receivable  
U.S. Treasury Securities    
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Number of Holdings with unrealized losses | security   6
Less Than 12 Months, Fair Value   $ 2,330
Less Than 12 Months, Unrealized Losses   (41)
Fair Value   2,330
Unrealized Losses   $ (41)
Municipal Bonds    
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Number of Holdings with unrealized losses | security 212 225
Less Than 12 Months, Fair Value $ 4,052 $ 59,912
Less Than 12 Months, Unrealized Losses (17) (5,321)
12 Months or Greater, Fair Value 120,527 69,424
12 Months or Greater, Unrealized Losses (19,018) (19,893)
Fair Value 124,579 129,336
Unrealized Losses $ (19,035) $ (25,214)
Mortgage-Backed Securities    
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Number of Holdings with unrealized losses | security 128 130
Less Than 12 Months, Fair Value $ 35,719 $ 123,224
Less Than 12 Months, Unrealized Losses (310) (5,427)
12 Months or Greater, Fair Value 135,829 62,882
12 Months or Greater, Unrealized Losses (16,091) (12,173)
Fair Value 171,548 186,106
Unrealized Losses $ (16,401) $ (17,600)
Corporate Securities    
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Number of Holdings with unrealized losses | security 110 100
Less Than 12 Months, Fair Value $ 14,528 $ 88,486
Less Than 12 Months, Unrealized Losses (756) (5,121)
12 Months or Greater, Fair Value 101,311 17,054
12 Months or Greater, Unrealized Losses (11,123) (1,968)
Fair Value 115,839 105,540
Unrealized Losses $ (11,879) $ (7,089)
SBA Securities    
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Number of Holdings with unrealized losses | security 47 49
Less Than 12 Months, Fair Value $ 1,731 $ 2,498
Less Than 12 Months, Unrealized Losses (3) (6)
12 Months or Greater, Fair Value 7,072 9,750
12 Months or Greater, Unrealized Losses (99) (153)
Fair Value 8,803 12,248
Unrealized Losses $ (102) $ (159)
Asset-Backed Securities    
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Number of Holdings with unrealized losses | security 24 20
Less Than 12 Months, Fair Value $ 39,011 $ 21,919
Less Than 12 Months, Unrealized Losses (234) (396)
12 Months or Greater, Fair Value 13,805 6,186
12 Months or Greater, Unrealized Losses (191) (224)
Fair Value 52,816 28,105
Unrealized Losses $ (425) $ (620)