XML 74 R58.htm IDEA: XBRL DOCUMENT v3.24.0.1
INVESTMENT SECURITIES - Investment securities in a continuous unrealized loss position (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
position
Dec. 31, 2022
USD ($)
Available-for-Sale Securities, in Unrealized Loss Position, Fair Value    
Less than 12 months $ 72,127 $ 1,955,294
12 months or longer 2,720,541 2,106,692
Total 2,792,668 4,061,986
Available-for-Sale Securities, in Unrealized Loss Position, Gross Unrealized Losses    
Less than 12 months 933 188,107
12 months or longer 382,227 336,081
Total 383,160 524,188
Fair Value    
Less than 12 Months 555,836 1,034,795
12 Months or Longer 522,743 0
Total 1,078,579 1,034,795
Gross Unrealized Losses    
Less than 12 Months 16,111 44,900
12 Months or Longer 34,935 0
Total 51,046 44,900
Available-for-sale, allowance for credit losses 0 0
Accrued interest receivable on available-for-sale debt securities $ 14,400 $ 19,300
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Interest Receivable Interest Receivable
U.S. Treasury and agency securities    
Available-for-Sale Securities, in Unrealized Loss Position, Fair Value    
Less than 12 months $ 0 $ 1,384,075
12 months or longer 2,080,783 1,859,462
Total 2,080,783 3,243,537
Available-for-Sale Securities, in Unrealized Loss Position, Gross Unrealized Losses    
Less than 12 months 0 132,511
12 months or longer 300,385 284,498
Total 300,385 417,009
Fair Value    
Less than 12 Months 536,885 1,034,795
12 Months or Longer 521,350 0
Total 1,058,235 1,034,795
Gross Unrealized Losses    
Less than 12 Months 15,953 44,900
12 Months or Longer 34,913 0
Total 50,866 44,900
Obligations of state and political subdivisions    
Available-for-Sale Securities, in Unrealized Loss Position, Fair Value    
Less than 12 months 63,541 370,524
12 months or longer 287,191 47,923
Total 350,732 418,447
Available-for-Sale Securities, in Unrealized Loss Position, Gross Unrealized Losses    
Less than 12 months 878 35,488
12 months or longer 29,107 9,839
Total 29,985 45,327
Government agency mortgage-backed securities    
Available-for-Sale Securities, in Unrealized Loss Position, Fair Value    
Less than 12 months 8,586 190,727
12 months or longer 336,266 189,919
Total 344,852 380,646
Available-for-Sale Securities, in Unrealized Loss Position, Gross Unrealized Losses    
Less than 12 months 55 19,508
12 months or longer 51,557 40,606
Total 51,612 60,114
Fair Value    
Less than 12 Months 18,951  
12 Months or Longer 1,393  
Total 20,344  
Gross Unrealized Losses    
Less than 12 Months 158  
12 Months or Longer 22  
Total $ 180  
Corporate debt securities    
Available-for-Sale Securities in Unrealized Loss Positions, Number of Positions    
Total | position 2  
Available-for-Sale Securities, in Unrealized Loss Position, Fair Value    
Less than 12 months $ 0 0
12 months or longer 7,394 7,114
Total 7,394 7,114
Available-for-Sale Securities, in Unrealized Loss Position, Gross Unrealized Losses    
Less than 12 months 0 0
12 months or longer 606 886
Total 606 886
Government agency collateralized mortgage obligations    
Available-for-Sale Securities, in Unrealized Loss Position, Fair Value    
Less than 12 months 0 9,968
12 months or longer 8,907 2,274
Total 8,907 12,242
Available-for-Sale Securities, in Unrealized Loss Position, Gross Unrealized Losses    
Less than 12 months 0 600
12 months or longer 572 252
Total $ 572 $ 852