v3.26.1
Securities - Schedule of Government-Sponsored Residential Mortgage-Backed Securities With Gross Unrealized Losses (Details)
$ in Thousands
Jun. 30, 2026
USD ($)
holding
Dec. 31, 2025
USD ($)
holding
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Number of holdings | holding 656 639
Gross Unrealized Losses    
Less than 12 Months $ 8,265 $ 325
12 Months or Longer 355,047 346,878
Total 363,312 347,203
Fair Value    
Less than 12 Months 728,754 78,231
12 Months or Longer 2,096,771 2,277,277
Total $ 2,825,525 $ 2,355,508
Government-sponsored residential mortgage-backed securities    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Number of holdings | holding 303 292
Gross Unrealized Losses    
Less than 12 Months $ 7,483 $ 317
12 Months or Longer 248,727 239,531
Total 256,210 239,848
Fair Value    
Less than 12 Months 575,820 74,415
12 Months or Longer 1,402,448 1,511,918
Total $ 1,978,268 $ 1,586,333
Government-sponsored commercial mortgage-backed securities    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Number of holdings | holding 148 148
Gross Unrealized Losses    
Less than 12 Months $ 267 $ 0
12 Months or Longer 98,820 97,451
Total 99,087 97,451
Fair Value    
Less than 12 Months 102,613 0
12 Months or Longer 577,654 608,386
Total $ 680,267 $ 608,386
State and municipal bonds and obligations    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Number of holdings | holding 205 199
Gross Unrealized Losses    
Less than 12 Months $ 515 $ 8
12 Months or Longer 7,500 9,896
Total 8,015 9,904
Fair Value    
Less than 12 Months 50,321 3,816
12 Months or Longer 116,669 156,973
Total $ 166,990 $ 160,789