Income Taxes (Unrecognized Tax Benefits) (Details) $ in Thousands	6 Months Ended
Mar. 31, 2019 USD ($)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	$ 1,561
Decreases resulting from prior year tax positions	(31)
Decreases related to expiration of statute of limitations	(56)
Unrecognized tax benefits, ending balance	1,474
Unrecognized tax benefits that would impact effective tax rate	1,300
Decrease in Unrecognized Tax Benefits is Reasonably Possible	$ 100

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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-Topic 740
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

+ References

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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