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Business (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Jun. 30, 2018	Sep. 30, 2017
Income Taxes [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	21.00%	35.00%
Blended Federal Statutory Rate	24.53%
Income Tax Reconciliation Change In Enacted Tax Rate	$ 31,506
Other Tax Benefit	1,840
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit		$ 3,284
Business Acquisition [Line Items]
Redeemable Noncontrolling Interest, Current Value	2,995
Minority Interest Change in Redemption Value	$ (44)
Commercial & Industrial [Member]
Business Acquisition [Line Items]
MinorityInterestOwnershipPercentageByNoncontrollingOwners	20.00%

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

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