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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 |

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