v3.25.4
EMPLOYEE BENEFIT PLANS - Net Periodic Pension Cost (Details) - Pension plan - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2025
Dec. 31, 2024
Jun. 30, 2024
Net periodic pension cost included in the Bank's consolidated statements of income          
Service cost $ 589 $ 647 $ 1,203 $ 589 $ 1,235
Interest cost $ 1,139 $ 920 $ 2,282 1,139 $ 2,033
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Labor and Related Expense Labor and Related Expense Labor and Related Expense   Labor and Related Expense
Expected return on plan assets $ (1,668) $ (1,313) $ (3,417)   $ (2,862)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Labor and Related Expense Labor and Related Expense Labor and Related Expense   Labor and Related Expense
Amortization of net actuarial gain $ (141)   $ (472)    
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Labor and Related Expense   Labor and Related Expense    
Net periodic pension (income) cost $ (81) $ 254 $ (404)   $ 406
Amounts recognized in accumulated other comprehensive (gain) loss, before tax effect          
Amounts recognized in accumulated other comprehensive loss, before tax, net actuarial gain (losses) $ 10,100   $ 16,500 $ 10,100