Draw Period On New Originations

No definition available.

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- Definition

Loan To Completed Appraised Value, Percentage

+ References

No definition available.

+ Details

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- Definition

Residential real estate loans, percentage

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

+ Details

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- Definition

Amount of decrease in financing receivable from sale and reclassification to held-for-sale. Excludes net investment in lease.

+ References

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- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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- Definition

Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security.

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- Definition

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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- Definition

Value of loans held-for-sale transferred to loans held in the entity's portfolio in noncash transactions.

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Loans And Allowance For Credit Losses (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Loan Portfolio [Line Items]
Accrued interest receivable	$ 62,553	$ 59,398
Loans classified as mortgage loans held for sale	57,662	17,775
Transfer of Loans Held-for-sale to Portfolio Loans	4,574	8,525	$ 8,433
Financing Receivable, before Allowance for Credit Loss	15,737,556	15,392,061
Loans, net	15,663,312	$ 15,322,059
Home Today loans Originated After September 2016
Loan Portfolio [Line Items]
Loans, net	$ 0
Residential Core, Home Today and Construction Loans \| Ohio
Loan Portfolio [Line Items]
Residential real estate loans held, percent	59.00%	58.00%
Residential Core, Home Today and Construction Loans \| Florida
Loan Portfolio [Line Items]
Residential real estate loans held, percent	17.00%
Other Loans \| Nonperforming
Loan Portfolio [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 0	$ 0
Home Equity Member After 2016
Loan Portfolio [Line Items]
Draw Period On New Originations	10 years
Home Equity Member Prior to 2016
Loan Portfolio [Line Items]
Draw Period On New Originations	5 years
Home Equity Line of Credit \| California
Loan Portfolio [Line Items]
Residential real estate loans held, percent	17.00%	16.00%
Home Equity Line of Credit \| Ohio
Loan Portfolio [Line Items]
Residential real estate loans held, percent	22.00%	23.00%
Home Equity Line of Credit \| Florida
Loan Portfolio [Line Items]
Residential real estate loans held, percent	21.00%	22.00%
Home Equity Loan \| California
Loan Portfolio [Line Items]
Residential real estate loans held, percent	18.00%	19.00%
Home Equity Loan \| Ohio
Loan Portfolio [Line Items]
Residential real estate loans held, percent	23.00%	26.00%
Home Equity Loan \| Florida
Loan Portfolio [Line Items]
Residential real estate loans held, percent	22.00%	25.00%
Loans
Loan Portfolio [Line Items]
Accrued interest receivable	$ 59,980	$ 56,982
Adjustable Rate Residential Mortgage \| Residential Core
Loan Portfolio [Line Items]
Loans, net	3,944,540	4,379,132
Loan Sales
Loan Portfolio [Line Items]
Financing Receivable, Sale	$ 411,284	247,442	$ 77,205
Maximum \| LTV 85 Percent Prior To March 26, 2020 \| Construction
Loan Portfolio [Line Items]
Loan To Completed Appraised Value, Percentage	85.00%
Real Estate Loans
Loan Portfolio [Line Items]
Loans in process of foreclosure	$ 9,918	10,527
Financing Receivable, before Allowance for Credit Loss	15,729,403	15,386,356
Real Estate Loans \| Construction Loans
Loan Portfolio [Line Items]
Financing Receivable, before Allowance for Credit Loss	7,272	10,015
Real Estate Loans \| Residential Home Today
Loan Portfolio [Line Items]
Financing Receivable, before Allowance for Credit Loss	35,471	40,471
Real Estate Loans \| Residential Core
Loan Portfolio [Line Items]
Financing Receivable, before Allowance for Credit Loss	10,830,505	11,408,854
Real Estate Loans \| Home Equity Line of Credit
Loan Portfolio [Line Items]
Financing Receivable, before Allowance for Credit Loss	4,100,665	3,360,143
Real Estate Loans \| Home Equity Loan
Loan Portfolio [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 755,490	$ 566,873