XML 53 R39.htm IDEA: XBRL DOCUMENT v3.23.2
Investment Securities - Investment Category and Length of Time (Details)
$ in Thousands
Jun. 30, 2023
USD ($)
investment_security
Dec. 31, 2022
USD ($)
investment_security
Less than 12 Months    
Number | investment_security 12 102
Fair Value $ 166,471 $ 1,056,578
Gross Unrealized Losses $ (6,141) $ (62,647)
12 Months or Longer    
Number | investment_security 215 165
Fair Value $ 1,830,283 $ 1,544,392
Gross Unrealized Losses $ (268,708) $ (241,085)
Total    
Number | investment_security 227 267
Fair Value $ 1,996,754 $ 2,600,970
Gross Unrealized Losses $ (274,849) $ (303,732)
U.S. Treasury    
Less than 12 Months    
Number | investment_security 0 5
Fair Value $ 0 $ 33,982
Gross Unrealized Losses $ 0 $ (237)
12 Months or Longer    
Number | investment_security 1 1
Fair Value $ 13,104 $ 13,036
Gross Unrealized Losses $ (1,840) $ (1,902)
Total    
Number | investment_security 1 6
Fair Value $ 13,104 $ 47,018
Gross Unrealized Losses $ (1,840) $ (2,139)
Agency    
Less than 12 Months    
Number | investment_security 4 8
Fair Value $ 43,105 $ 79,895
Gross Unrealized Losses $ (895) $ (1,265)
12 Months or Longer    
Number | investment_security 37 35
Fair Value $ 370,751 $ 351,543
Gross Unrealized Losses $ (49,208) $ (52,628)
Total    
Number | investment_security 41 43
Fair Value $ 413,856 $ 431,438
Gross Unrealized Losses $ (50,103) $ (53,893)
Corporate    
Less than 12 Months    
Number | investment_security 2 35
Fair Value $ 26,068 $ 327,984
Gross Unrealized Losses $ (3,932) $ (20,840)
12 Months or Longer    
Number | investment_security 50 21
Fair Value $ 457,013 $ 214,565
Gross Unrealized Losses $ (59,181) $ (23,264)
Total    
Number | investment_security 52 56
Fair Value $ 483,081 $ 542,549
Gross Unrealized Losses $ (63,113) $ (44,104)
Collateralized mortgage obligations    
Less than 12 Months    
Number | investment_security 4 41
Fair Value $ 69,635 $ 522,955
Gross Unrealized Losses $ (991) $ (33,318)
12 Months or Longer    
Number | investment_security 49 40
Fair Value $ 257,622 $ 241,229
Gross Unrealized Losses $ (29,518) $ (32,381)
Total    
Number | investment_security 53 81
Fair Value $ 327,257 $ 764,184
Gross Unrealized Losses $ (30,509) $ (65,699)
Mortgage-backed securities    
Less than 12 Months    
Number | investment_security 2 13
Fair Value $ 27,663 $ 91,762
Gross Unrealized Losses $ (323) $ (6,987)
12 Months or Longer    
Number | investment_security 78 68
Fair Value $ 731,793 $ 724,019
Gross Unrealized Losses $ (128,961) $ (130,910)
Total    
Number | investment_security 80 81
Fair Value $ 759,456 $ 815,781
Gross Unrealized Losses $ (129,284) $ (137,897)