Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 22,186	$ 18,898
Adjustments to reconcile net income to net cash provided by operating activities:
FHLB stock dividends	(1,231)	(1,069)
Provision for credit losses	(3,439)	(1,532)
Originations of loans receivable held-for-sale ("LHFS")	(678)	(364)
Proceeds from sales of LHFS	285	366
Amortization and accretion of premiums and discounts on securities	1,764	1,017
Depreciation and amortization of premises and equipment	2,341	2,304
Amortization of intangible assets	350	422
Amortization of deferred amounts related to FHLB advances, net	453	254
Common stock committed to be released for allocation - ESOP	487	493
Stock-based compensation	123	118
Changes in:
Other assets, net	1,452	1,942
Income taxes payable/receivable, net	2,807	2,372
Deferred income tax liabilities, net	438	248
Other liabilities	(7,069)	(6,266)
Net cash provided by operating activities	20,269	19,203
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of AFS securities	0	(504,780)
Proceeds from calls, maturities and principal reductions of AFS securities	107,665	152,396
Proceeds from the redemption of FHLB stock	1,224	10,238
Purchase of FHLB stock	(1,833)	0
Net change in loans receivable	(12,387)	203,698
Purchase of premises and equipment	(1,526)	(2,058)
Proceeds from sale of other real estate owned ("OREO")	120	53
Proceeds from bank-owned life insurance ("BOLI") death benefit	0	443
Net cash provided by (used in) investing activities	93,263	(140,010)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash dividends paid	(41,385)	(29,128)
Net change in deposits	50,608	219,434
Proceeds from borrowings	293,702	305,000
Repayments on borrowings	(293,702)	(358,000)
Change in advance payments by borrowers for taxes and insurance	(34,502)	(32,505)
Payment of FHLB prepayment penalties	0	(2,292)
Repurchase of common stock	0	(4,568)
Net cash (used in) provided by financing activities	(25,279)	97,941
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, RESTRICTED CASH AND RESTRICTED CASH EQUIVALENTS	88,253	(22,866)
CASH, CASH EQUIVALENTS, RESTRICTED CASH AND RESTRICTED CASH EQUIVALENTS:
Beginning of period	70,292	239,708
End of period	$ 158,545	$ 216,842