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Business (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2018	Mar. 31, 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		$ 31,487
Business Acquisition [Line Items]
Minority Interest Change in Redemption Value	$ (44)	$ (44)
Commercial & Industrial [Member]
Business Acquisition [Line Items]
MinorityInterestOwnershipPercentageByNoncontrollingOwners	20.00%	20.00%
Minority Interest Redemption Value	$ 1,995	$ 1,995

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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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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Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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