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Income Taxes (Tables)
12 Months Ended
Sep. 30, 2021
Income Tax Disclosure [Abstract]  
Summary of major sources of temporary differences and deferred tax effects
The table below provides a summary of the Company's tax assets and liabilities, including deferred tax assets and deferred tax liabilities by major source. Deferred tax balances represent temporary differences between the financial statement and corresponding tax treatment of income, gains, losses, deductions or credits.

September 30, 2021September 30, 2020
 (In thousands)
Deferred tax assets
Allowance for credit losses$45,724 $44,150 
REO reserves173 265 
Non-accrual loan interest1,080 892 
Deferred compensation6,230 3,506 
Stock based compensation2,508 2,218 
Lease liability6,655 7,660 
Other4,525 2,269 
Total deferred tax assets66,895 60,960 
Deferred tax liabilities
FHLB stock dividends9,783 14,637 
Valuation adjustment on available-for-sale securities and cash flow hedges20,845 5,064 
Loan origination fees and costs5,645 7,116 
Premises and equipment21,426 21,399 
Lease right-of-use assets6,249 7,270 
Other9,139 5,767 
Total deferred tax liabilities73,087 61,253 
Net deferred tax asset (liability)(6,192)(293)
Current tax asset (liability)10,069 6,001 
Net tax asset (liability)$3,877 $5,708 
Schedule of effective income tax rate reconciliation
The table below presents a reconciliation of the statutory federal income tax rate to the Company's effective income tax rate.

Year ended September 30,202120202019
Statutory income tax rate21 %21 %21 %
State income tax
Other differences(2)(2)(3)
Effective income tax rate21 %21 %20 %
Schedule of components of income tax expense (benefit)
The following table summarizes the Company's income tax expense (benefit) for the respective periods.

Year ended September 30,202120202019
(In thousands)
Federal:
Current$53,820 $49,782 $46,376 
Deferred(8,468)(7,858)1,916 
45,352 41,924 48,292 
State:
  Current$5,584 $5,310 $4,557 
  Deferred(1,413)(1,486)(330)
4,171 3,824 4,227 
Total
  Current59,404 55,092 50,933 
  Deferred(9,881)(9,344)1,586 
$49,523 $45,748 $52,519