Derivative Financial Instruments (Offsetting Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amount of Recognized Liabilities	$ 4,837
Gross Amounts Offset in the Consolidated Balance Sheets	0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheets	4,837	$ 4,347
Gross Amounts Not Offset in the Consolidated Balance Sheets, Financial Instruments	(827)
Gross Amounts Not Offset in the Consolidated Balance Sheets, Cash Collateral Pledged	0
Net Amount	$ 4,010

Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

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-Name Accounting Standards Codification
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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be offset, deducted from derivative liabilities.

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