v3.26.1
INCOME TAXES (Tables)
9 Months Ended
Jun. 30, 2026
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation
The table below compares the income tax expense components for the periods presented.

Nine Months Ended June 30,
(Dollars in thousands)20262025
Provision at statutory rate$33,909 $36,547 
Tax-exempt income(442)(480)
State income taxes6,266 6,562 
Interim period effective rate adjustment(6,413)(9,971)
Tax credit investments, net - federal(8,586)(3,913)
Research tax credit(1,303)(752)
162(m) disallowance1,427 1,061 
Other, net(432)(2,088)
Income tax expense$24,426 $26,966 
Effective tax rate15.1%15.4 %