v3.26.1
ALLOWANCE FOR CREDIT LOSSES - Narrative (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
Jun. 30, 2026
USD ($)
largeLoanRelationship
Dec. 31, 2025
USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]      
Number of loans evaluated | largeLoanRelationship   20  
Minimum aggregate commercial relationship   $ 2,000,000.0  
Portfolio Loans   3,734,594,000 $ 3,879,560,000
Nonaccrual Loans   37,561,000 243,982,000
Troubled debt restructured loans, individually evaluated impaired loans   1,000,000.0  
Disposal Group, Held-for-sale, Not Discontinued Operations      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Nonaccrual Loans   0 0
90+ Days Past Due      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Portfolio Loans   0 0
Substandard      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Portfolio Loans   42,355,000 250,498,000
Nonperforming      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Portfolio Loans   37,561,000 243,982,000
Nonperforming | Largest Credit Relationship Loans | Substandard      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Portfolio Loans     214,000,000.0
Other      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Previously established specific reserves     18,000,000.0
Portfolio Loans   0 217,155,000
Nonaccrual Loans   0 214,020,000
Increase (decrease) in nonaccrual loans $ (214,000,000.0)    
Release of specific reserves   18,000,000.0  
Other | Substandard      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Portfolio Loans   0 214,020,000
Other | Nonperforming      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Portfolio Loans   $ 0 $ 214,020,000