GNMA Loans past due by 90 days, but not yet repurchased

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Mortgage Loans on Real Estate, Repurchase Reserve Liability

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Prior Bankruptcy Recoveries by Plaintiffs

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Standby Letters Of Credit Expire Thereafter

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Standby Letters Of Credit Expires Within One Year

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Standby Letters Of Credit, Financial Guarantees required to perform on

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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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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of loss contingency liability.

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Financial guarantees in connection with standby letters of credit	$ 0	$ 0
Standby letters of credit expiring within one year	131,700
Standby letters of credit expiring thereafter	24,200
Residential mortgage loan repurchase reserve liability	200
Loss Contingency Accrual	3,900
Concentration Risk [Line Items]
Prior Bankruptcy Recoveries by Plaintiffs	110,000
GNMA Loans past due by 90 days, but not yet repurchased	5,400
Minimum
Concentration Risk [Line Items]
Loss Contingency, Damages Sought, Value	386,200
Maximum
Concentration Risk [Line Items]
Loss Contingency, Damages Sought, Value	$ 429,800
Product Concentration Risk \| Revenue Benchmark \| Real Estate Loans As Part Of Loan Portfolio
Concentration Risk [Line Items]
Concentration risk (as a percent)	74.00%		78.00%