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Income Taxes (Tables)

12 Months Ended

Sep. 30, 2018

Income Taxes [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

			Year Ended September 30,
			2018			2017			2016
Federal:
	Current		$	(2,345)		$	(3,092)		$	762
	Deferred			38,744			6,384			(97,093)
State:
	Current			1,536			1,432			952
	Deferred			216			487			(1,738)
	Total provision for income taxes		$	38,151		$	5,211		$	(97,117)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

			Year Ended September 30,
			2018			2017			2016
Provision at the statutory rate (1)			$	5,973		$	6,582		$	8,316
Increase resulting from:
	Non-deductible expenses			1,003			966			1,557
	State income taxes, net of federal deduction			1,193			1,003			1,105
	Change in valuation allowance			1,761			142			-
	Rate change			31,333			-			-
	Other			183			17			-
Decrease resulting from:
	Change in valuation allowance			-			-			(108,987)
	Contingent tax liabilities			(1,908)			(3,499)			(96)
	State deferred true up			(1,387)			-			-
	Other			-			-			988
	Total provision for income taxes		$	38,151		$	5,211		$	(97,117)
	(1) A statutory rate of 24.53% was used in 2018 and 35% in both 2017 and 2016. The lower effective tax rate used in 2018 is related to the enactment of Tax Cuts and Jobs Act enacted on December 22, 2017.

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

				Year Ended September 30,
				2018			2017
Deferred income tax assets:
	Allowance for doubtful accounts			$	207		$	243
	Accrued expenses				8,054			12,915
	Net operating loss carryforward				46,881			77,497
	Various reserves				1,172			1,807
	Equity losses in affiliate				119			82
	Share-based compensation				665			1,570
	Capital loss carryforward				94			337
	Other				712			3,195
Subtotal					57,904			97,646
Less valuation allowance					4,127			2,366
Total deferred income tax assets				$	53,777		$	95,280
Deferred income tax liabilities:
	Property and equipment			$	1,122		$	2,019
	Intangible assets				5,499			6,548
	Other				576			502
Total deferred income tax liabilities					7,197			9,069
Net deferred income tax assets				$	46,580		$	86,211

Schedule Of Unrecognized Tax Benefits Roll Forward Table[Text Block]

	Year Ended September 30,
	2018			2017
Balance at October 1,	$	51,968		$	55,867
Additions for position related to current year		13			207
Additions for positions of prior years		272			-
Reduction resulting from the lapse of the applicable statutes of limitations		3,361			3,707
Reduction resulting from rate change		18,636			-
Reduction resulting from positions of prior years		-			399
Reduction resulting from settlement of positions of prior years		-			-
Balance at September 30,	$	30,256		$	51,968

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of the change in unrecognized tax benefits.

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