Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 49,212	$ 25,953
Adjustments to reconcile net income to net cash provided by operating activities:
FHLB stock dividends	(6,834)	(7,591)
Provision for credit losses	226	1,896
Originations of loans receivable held-for-sale ("LHFS")	(1,990)	(425)
Proceeds from sales of LHFS	3,629	431
Amortization and accretion of premiums and discounts on securities	(2,491)	(7,327)
Depreciation and amortization of premises and equipment	5,440	6,084
Amortization of intangible assets	411	589
Amortization of deferred amounts related to FHLB advances, net	1,080	1,143
Common stock committed to be released for allocation - ESOP	738	684
Stock-based compensation	300	266
Net loss from securities transactions	0	13,345
Changes in:
Unrestricted cash collateral from derivative counterparties, net	(440)	(6,730)
Other assets, net	2,119	3,301
Income taxes receivable, net	(727)	8,374
Deferred income tax assets, net	1,595	(1,331)
Other liabilities	(18,751)	(4,387)
Net cash provided by operating activities	33,517	34,275
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of AFS securities	(248,207)	(1,059,833)
Proceeds from calls, maturities and principal reductions of AFS securities	147,190	373,739
Proceeds from sale of AFS securities	0	1,272,512
Proceeds from the redemption of FHLB stock	11,515	11,996
Purchase of FHLB stock	(1,731)	0
Net change in loans receivable	(117,839)	35,187
Purchase of premises and equipment	(3,550)	(5,408)
Proceeds from sale of other real estate owned ("OREO")	110	464
Proceeds from sale of premises and equipment	43	0
Proceeds from sale of assets held-for-sale	0	629
Proceeds from bank-owned life insurance ("BOLI") death benefit	667	1,049
Net cash (used in) provided by investing activities	(211,802)	630,335
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash dividends paid	(33,186)	(33,479)
Net change in deposits	301,155	78,440
Proceeds from borrowings	650,100	275,100
Repayments on borrowings	758,635	864,864
Change in advances by borrowers	(22,944)	(28,142)
Payment of FHLB prepayment penalties	(547)	0
Repurchase of common stock	0	(19,449)
Net cash provided by (used in) financing activities	135,943	(592,394)
NET (DECREASE) / INCREASE IN CASH AND CASH EQUIVALENTS	(42,342)	72,216
CASH AND CASH EQUIVALENTS:
Beginning of period	217,307	245,605
End of period	$ 174,965	$ 317,821