v3.26.1
INVESTMENT SECURITIES - Allowance for Credit Loss and Unrealized Losses and Fair Values (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Available For Sale Securities, Continuous Unrealized Loss Position, Fair Values    
Less than 12 Months, Fair value $ 555,531 $ 222,626
Less than 12 Months, Unrealized loss 10,114 1,222
12 Months or more, Fair value 577,582 663,757
12 Months or more, Unrealized loss 86,369 83,915
Total, Fair value 1,133,113 886,383
Total, Unrealized loss 96,483 85,137
U.S. government sponsored entities and U.S. agency securities    
Available For Sale Securities, Continuous Unrealized Loss Position, Fair Values    
Less than 12 Months, Fair value 19,519 9,668
Less than 12 Months, Unrealized loss 100 5
12 Months or more, Fair value 0 9,077
12 Months or more, Unrealized loss 0 923
Total, Fair value 19,519 18,745
Total, Unrealized loss 100 928
Mortgage-backed securities - agency    
Available For Sale Securities, Continuous Unrealized Loss Position, Fair Values    
Less than 12 Months, Fair value 494,501 201,422
Less than 12 Months, Unrealized loss 9,851 1,191
12 Months or more, Fair value 478,263 524,471
12 Months or more, Unrealized loss 78,837 74,285
Total, Fair value 972,764 725,893
Total, Unrealized loss 88,688 75,476
Mortgage-backed securities - non-agency    
Available For Sale Securities, Continuous Unrealized Loss Position, Fair Values    
Less than 12 Months, Fair value 13,848 42
Less than 12 Months, Unrealized loss 65 0
12 Months or more, Fair value 15,728 22,386
12 Months or more, Unrealized loss 2,379 2,331
Total, Fair value 29,576 22,428
Total, Unrealized loss 2,444 2,331
Asset-backed student loans    
Available For Sale Securities, Continuous Unrealized Loss Position, Fair Values    
Less than 12 Months, Fair value 3,187 5,166
Less than 12 Months, Unrealized loss 3 13
12 Months or more, Fair value 13,129 14,378
12 Months or more, Unrealized loss 70 73
Total, Fair value 16,316 19,544
Total, Unrealized loss 73 86
State and municipal securities    
Available For Sale Securities, Continuous Unrealized Loss Position, Fair Values    
Less than 12 Months, Fair value 1,816 3,826
Less than 12 Months, Unrealized loss 2 12
12 Months or more, Fair value 43,777 46,204
12 Months or more, Unrealized loss 4,071 3,972
Total, Fair value 45,593 50,030
Total, Unrealized loss 4,073 3,984
Collateralized loan obligations    
Available For Sale Securities, Continuous Unrealized Loss Position, Fair Values    
Less than 12 Months, Fair value 18,686 0
Less than 12 Months, Unrealized loss 67 0
12 Months or more, Fair value 0 0
12 Months or more, Unrealized loss 0 0
Total, Fair value 18,686 0
Total, Unrealized loss 67 0
Corporate securities    
Available For Sale Securities, Continuous Unrealized Loss Position, Fair Values    
Less than 12 Months, Fair value 3,974 2,502
Less than 12 Months, Unrealized loss 26 1
12 Months or more, Fair value 26,685 47,241
12 Months or more, Unrealized loss 1,012 2,331
Total, Fair value 30,659 49,743
Total, Unrealized loss $ 1,038 $ 2,332