Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 2,543	$ 16,240
Adjustments to reconcile net income to net cash provided by operating activities:
FHLB stock dividends	(2,586)	(4,158)
Provision for credit losses	123	3,660
Originations of loans receivable held-for-sale ("LHFS")	(425)	0
Proceeds from sales of LHFS	433	0
Amortization and accretion of premiums and discounts on securities	(2,771)	837
Depreciation and amortization of premises and equipment	2,040	2,298
Amortization of intangible assets	199	274
Amortization of deferred amounts related to FHLB advances, net	383	459
Common stock committed to be released for allocation - ESOP	222	341
Stock-based compensation	87	89
Net loss from securities transactions	13,345	0
Changes in:
Unrestricted cash collateral received from derivative counterparties, net	(6,830)	530
Other assets, net	461	(2,527)
Income taxes payable/receivable, net	4,584	1,117
Deferred income tax liabilities, net	(7,836)	(245)
Other liabilities	(9,306)	(4,314)
Net cash (used in) provided by operating activities	(5,334)	14,601
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of AFS securities	(668,310)	0
Proceeds from calls, maturities and principal reductions of AFS securities	49,604	51,045
Proceeds from sale of AFS securities	1,272,512	0
Proceeds from the redemption of FHLB stock	3,134	90,423
Purchase of FHLB stock	0	(109,760)
Net change in loans receivable	22,815	(327,583)
Proceeds from sale of participating interest in loans receivable	0	5,563
Purchase of premises and equipment	(1,261)	(1,093)
Proceeds from sale of other real estate owned ("OREO")	0	296
Net cash provided by (used in) investing activities	678,494	(291,109)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash dividends paid	(11,308)	(49,209)
Net change in deposits	(29,625)	(120,317)
Proceeds from borrowings	175,100	2,000,100
Repayments on borrowings	682,521	1,487,518
Change in advances by borrowers	(38,154)	(43,860)
Repurchase of common stock	(11,900)	(22,196)
Net cash (used in) provided by financing activities	(598,408)	277,000
NET INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	74,752	492
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	245,605	49,194
End of period	$ 320,357	$ 49,686