Income Taxes (Unrecognized Tax Benefits) (Details) $ in Thousands	6 Months Ended
Mar. 31, 2020 USD ($)
Unrecognized tax benefits that would impact effective tax rate	$ 2,200
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	1,713
Increases related to prior year income tax positions	712
Decreases related to settlements	(7)
Decreases related to expiration of statute of limitations	(39)
Unrecognized tax benefits, ending balance	2,379
Maximum
Unrecognized tax benefits that would decrease next twelve months	$ 300

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

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

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Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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

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

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