Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%
Reorganization Of Goodwill Excess Tax Basis	$ 24,190
SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound	3,745
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	11	$ 18
Deferred Tax Assets, Net	101,094	2,228
Uncertain Tax Benefit Net Opertating Loss From Goodwill	50,581	$ 50,581
Internal Revenue Service (IRS) [Member]
Income Taxes [Line Items]
Cash Tax Reduction Attributable To Additional Goodwill Amortization	11,487
Operating Loss Carryforwards Attributable To Additional Goodwill Amortization	142,052
Operating Loss Carryforwards	$ 404,032
Tax Credit Carryforward, Limitations on Use	The annual limitation under Section 382 on the utilization of federal net operating losses was approximately $20,000 for the first five tax years subsequent to the change in ownership and $16,000 thereafter.
Carryforward Amount Excluded From Limitations on Use	$ 299,904
Valuation Allowance, Deferred Tax Asset, Change in Amount	326
DeferredTaxAssetOffsetByDeferredTaxLiability	7,157
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards Attributable To Additional Goodwill Amortization	11,227
Operating Loss Carryforwards	85,929
Valuation Allowance, Deferred Tax Asset, Change in Amount	1,898
DeferredTaxAssetOffsetByDeferredTaxLiability	388
Deferred Tax Assets, Net	$ 550