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CUSTOMER ACCOUNTS - Schedule of Deposits (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Deposit Account Balance
Non-interest checking	$ 2,567,539	$ 2,500,467
Interest checking	4,865,808	4,486,444
Savings	701,558	718,560
Money market	4,171,627	4,111,714
Time deposits	9,131,104	9,556,785
Customer accounts	$ 21,437,636	$ 21,373,970
As a % of Total Deposits
Non-interest checking	12.00%	11.70%
Interest checking	22.70%	21.00%
Savings	3.30%	3.40%
Money market	19.40%	19.20%
Time deposits	42.60%	44.70%
Total	100.00%	100.00%
Weighted Average Rate
Non-interest checking	0.00%	0.00%
Interest checking	2.55%	2.89%
Savings	0.22%	0.23%
Money market	2.14%	2.22%
Time deposits	3.74%	4.58%
Total	2.60%	3.09%	2.12%

X

- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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-Section S99
-Paragraph 1
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Amount of interest-bearing domestic checking deposit liabilities.

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Amount of interest-bearing domestic time deposits. Time deposits bear interest for a fixed, stated period of time and include certificate of deposits and individual retirement accounts.

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