XML 58 R48.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2
Debt Securities Available for Sale - Continuous Unrealized Loss Position of Available-for-Sale Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Fair Value    
Less Than 12 Months $ 131,777 $ 54
12 Months or Longer 946,908 962,837
Total 1,078,685 962,891
Gross Unrealized (Losses)    
Less Than 12 Months (569) (4)
12 Months or Longer (165,515) (158,615)
Total (166,084) (158,619)
U.S. government and agency obligations    
Fair Value    
Less Than 12 Months 102,990 0
12 Months or Longer 25,704 21,344
Total 128,694 21,344
Gross Unrealized (Losses)    
Less Than 12 Months (440) 0
12 Months or Longer (1,879) (1,810)
Total (2,319) (1,810)
Mortgage-backed securities and collateralized mortgage obligations    
Fair Value    
Less Than 12 Months 28,787 54
12 Months or Longer 840,015 863,026
Total 868,802 863,080
Gross Unrealized (Losses)    
Less Than 12 Months (129) (4)
12 Months or Longer (149,509) (141,939)
Total (149,638) (141,943)
Municipal obligations    
Fair Value    
Less Than 12 Months 0 0
12 Months or Longer 2,708 2,702
Total 2,708 2,702
Gross Unrealized (Losses)    
Less Than 12 Months 0 0
12 Months or Longer (60) (68)
Total (60) (68)
Corporate debt securities    
Fair Value    
Less Than 12 Months 0 0
12 Months or Longer 78,481 75,765
Total 78,481 75,765
Gross Unrealized (Losses)    
Less Than 12 Months 0 0
12 Months or Longer (14,067) (14,798)
Total $ (14,067) $ (14,798)