Income Taxes - Principal Reasons for Differences from Federal Statutory Rate (Detail) |
12 Months Ended | |
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Sep. 30, 2015 |
Sep. 30, 2014 |
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| Effective Income Tax Rate Reconciliation, Percent [Abstract] | ||
| Federal tax at statutory rate | 35.00% | 34.00% |
| True-up of prior year's tax provision | (2.10%) | 1.40% |
| State tax at statutory rate | 3.90% | 5.50% |
| Permanent and other differences | 0.20% | 0.40% |
| Uncertain tax position allowance | 2.40% | |
| Effective Tax Rate | 39.40% | 41.30% |
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- Definition Effective income tax rate reconciliation permanent and other differences. No definition available.
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage 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 changes in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage 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 revisions of previously reported income tax expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage 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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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