v3.25.4

Loans And Allowance For Credit Losses (Loans Held For Investment) (Details) - USD ($) $ in Thousands		Dec. 31, 2025	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024
Loan Portfolio [Line Items]
Loans, net		$ 15,741,688	$ 15,663,312
Other Loans
Loan Portfolio [Line Items]
Loans held for investment		8,515	8,153
Deferred loan expenses, net		8,515	8,153
Deferred Loan Expense
Loan Portfolio [Line Items]
Deferred loan expenses, net		70,317	69,943
Real Estate Loans
Loan Portfolio [Line Items]
Loans held for investment		15,745,924	15,664,394
Deferred loan expenses, net		15,808,157	15,729,403
Loan in Process		8,084	4,934
Allowance for credit losses on loans		(74,984)	(74,244)	$ (70,559)	$ (70,002)
Real Estate Loans | Residential Core
Loan Portfolio [Line Items]
Loans held for investment		10,649,895	10,803,813
Deferred loan expenses, net		10,676,463	10,830,505
Allowance for credit losses on loans		(38,365)	(39,939)	(42,476)	(44,402)
Real Estate Loans | Residential Home Today
Loan Portfolio [Line Items]
Loans held for investment		34,772	35,933
Deferred loan expenses, net	[1]	34,323	35,471
Allowance for credit losses on loans		2,139	2,438	2,529	2,672
Real Estate Loans | Home Equity Line of Credit
Loan Portfolio [Line Items]
Loans held for investment		4,238,904	4,062,798
Deferred loan expenses, net		4,276,940	4,100,665
Allowance for credit losses on loans		(23,045)	(22,069)	(18,194)	(16,590)
Real Estate Loans | Home Equity Loan
Loan Portfolio [Line Items]
Loans held for investment		809,425	749,548
Deferred loan expenses, net		815,684	755,490
Allowance for credit losses on loans		(15,701)	(14,645)	(12,375)	(11,642)
Real Estate Loans | Construction
Loan Portfolio [Line Items]
Allowance for credit losses on loans		(12)	(29)	$ (43)	$ (40)
Real Estate Loans | Construction
Loan Portfolio [Line Items]
Loans held for investment		$ 12,928	$ 12,302
[1] No new originations of Home Today loans since fiscal year 2016.

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 20
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-Section 45
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-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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