v3.25.4

Borrowed Funds (Narrative) (Federal Home Loan Bank Advances) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Maximum
Federal Home Loan Bank Advances, Branch of FHLB Bank [Line Items]
Fixed rate borrowings terms ranging to, in months	240 months
Federal Home Loan Bank Advances
Federal Home Loan Bank Advances, Branch of FHLB Bank [Line Items]
Interest expense	$ 28,112	$ 25,199
Short-Term FHLB Advances	$ 2,950,000

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