The estimated cost to sell properties, acquired through foreclosure, which are measured at fair value.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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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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No definition available.

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- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.

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Fair value of financial and nonfinancial obligations.

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Amount, before allowance and fees, of loans and leases receivable. Excludes loans and leases covered under loss sharing agreements.

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Fair value portion of mortgage loans held-for-sale.

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- Definition

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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Fair Value (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Fair Value (Narrative) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Sep. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$ 51,446		$ 51,446		$ 3,706
Available-for-sale Securities	514,330		514,330		547,864
Performing troubled debt restructurings individually evaluated for impairment	156,414		156,414		170,473
Allowance on performing troubled debt restructurings individually evaluated for impairment based on the present value of cash flows	12,890		12,890		13,505
Real estate owned, net	1,395		1,395		2,163
Cost to dispose related to properties measured at fair value included in Consolidated Statements of Condition	88		88		146
Net gain on the sale of loans	10,844	$ 543	16,907	$ 1,105
Present Value of Cash Flows \| Troubled Debt Restructuring \| Performing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Allowance on performing troubled debt restructurings individually evaluated for impairment based on the present value of cash flows	12,890		12,890		13,399
Subject To Pending Agency Contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	45,231		45,231		0
Net gain on the sale of loans	2,331	$ 0	2,331	$ 0
Real estate loans	43,236		43,236		0
Portion at Other than Fair Value \| Present Value of Cash Flows \| Troubled Debt Restructuring \| Performing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Performing troubled debt restructurings individually evaluated for impairment	94,798		94,798		98,875
Allowance on performing troubled debt restructurings individually evaluated for impairment based on the present value of cash flows	12,890		12,890		13,399
Portion at Other than Fair Value \| Original Or Adjusted Cost Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate owned, net	749		749		1,322
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	51,446		51,446		3,706
Available-for-sale Securities	514,330		514,330		547,864
Fair Value, Inputs, Level 2 \| Subject To Pending Agency Contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	45,231		45,231
Fair Value, Inputs, Level 2 \| Portion at Other than Fair Value \| Carried At Cost
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	5,908		5,908		3,666
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	0		0		0
Available-for-sale Securities	0		0		0
Fair Value, Inputs, Level 3 \| Subject To Pending Agency Contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	0		0
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities carried at fair value	0		0		0
Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2 \| U.S. Government Obligations \| Market Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	514,330		514,330		547,864
Fair Value, Measurements, Nonrecurring \| Fair Value, Inputs, Level 3 \| Market Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate owned, net	$ 734		$ 734		$ 987