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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 103,519	$ 74,341
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, accretion and other, net	24,479	205,721
Stock-based compensation expense	4,430	5,180
Provision (release) for credit losses	2,750	16,000
Loss (gain) on sale of investment securities	(20)	(171)
Net realized (gain) loss on sales of premises, equipment, and real estate owned	(601)	(2,567)
Impairment loss on premises and equipment	35	0
Decrease (increase) in accrued interest receivable	1,049	(2,784)
Decrease (increase) in federal and state income tax receivable	(2,118)	(9,213)
Decrease (increase) in cash surrender value of bank owned life insurance	(3,688)	(3,343)
Decrease (increase) in other assets	(12,713)	44,394
Increase (decrease) in accrued expenses and other liabilities	4,443	(48,096)
Net cash provided by (used in) operating activities	121,565	279,462
CASH FLOWS FROM INVESTING ACTIVITIES
Origination of loans and principal repayments, net	117,160	(328,829)
Loans purchased	(137,564)	0
FHLB stock purchased	(242,203)	(312,810)
FHLB stock redeemed	203,857	350,475
Available-for-sale securities purchased	(809,552)	(214,707)
Principal payments and maturities of available-for-sale securities	239,903	150,666
Proceeds from sales of available-for-sale securities	797	176,402
Held-to-maturity securities purchased	(114,182)	(47,670)
Principal payments and maturities of held-to-maturity securities	24,619	15,800
Proceeds from sales of real estate owned	2,865	6,271
Equity method investments purchased	(3,575)	(1,097)
Net cash received (paid) in business combinations	(360)	625,773
Proceeds from sales of premises and equipment	1,689	1,341
Premises and equipment purchased and REO improvements	(12,000)	(12,623)
Net cash provided by (used in) investing activities	(728,546)	408,992
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in customer accounts	53,456	(368,952)
Proceeds from borrowings	5,368,400	11,387,889
Repayments of borrowings	(5,876,500)	(11,124,509)
Proceeds from stock-based awards	2,951	1,972
Dividends paid on common stock	(42,541)	(32,472)
Dividends paid on preferred stock	(7,313)	(7,314)
Proceeds from employee stock purchase	472	558
Treasury stock purchased	(24,751)	(17,304)
Increase (decrease) in advances payments by borrowers for taxes and insurance	(16,834)	(3,200)
Net cash provided by (used in) financing activities	(542,660)	(163,332)
Increase (decrease) in cash and cash equivalents	(1,149,641)	525,122
Cash, cash equivalents and restricted cash at beginning of period	2,381,102	980,649
Cash, cash equivalents and restricted cash at end of period	1,231,461	1,505,771
Non-cash investing activities
Real estate acquired through foreclosure	5,095	0
Non-cash financing activities
Preferred stock dividend payable	3,656	3,656
Cash paid (received) during the period for
Interest	406,332	311,021
Income tax	23,106	11,066
The following summarizes the non-cash activities related to acquisitions
Fair value of assets and intangibles acquired, including goodwill	0	7,676,343
Fair value of liabilities assumed	0	(7,316,675)
Net fair value of assets (liabilities)	$ 0	$ 359,668

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