XML 58 R47.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2
Investment Securities - Securities Held-to-Maturity (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Mar. 31, 2023
Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss $ 2,293,484 [1] $ 2,288,791 [2]    
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest (1,500) [1] (1,500) [2] $ (1,500) $ (1,500)
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss, Total 2,291,984 [1] 2,287,291 [2]    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 676 [1] 1,760 [2]    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss (139,311) [1] (120,735) [2]    
Securities held to maturity, fair value 2,153,349 [1] 2,168,316 [2]    
Municipal securities        
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss 1,248,355 1,247,310    
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest (140) (140)    
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss, Total 1,248,215 1,247,170    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 676 1,760    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss (42,079) (28,170)    
Securities held to maturity, fair value 1,206,812 1,220,760    
Agency commercial MBS        
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss 435,467 433,827    
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest 0 0    
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss, Total 435,467 433,827    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 0 0    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss (34,619) (30,665)    
Securities held to maturity, fair value 400,848 403,162    
Private label commercial MBS        
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss 351,688 350,493    
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest 0 0    
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss, Total 351,688 350,493    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 0 0    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss (28,499) (29,289)    
Securities held to maturity, fair value 323,189 321,204    
U.S. Treasury securities        
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss 187,759 187,033    
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest 0 0    
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss, Total 187,759 187,033    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 0 0    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss (15,421) (11,454)    
Securities held to maturity, fair value 172,338 175,579    
Corporate Debt Securities        
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss 70,215 70,128    
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest (1,360) (1,360)    
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss, Total 68,855 68,768    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 0 0    
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss (18,693) (21,157)    
Securities held to maturity, fair value 50,162 47,611    
Interest Receivable $ 11,300 $ 13,400    
[1] Excludes accrued interest receivable of $11.3 million at March 31, 2024 which is recorded in "Other assets" on the condensed consolidated balance sheets
[2] Excludes accrued interest receivable of $13.4 million at December 31, 2023 which is recorded in "Other assets" on the condensed consolidated balance sheets