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Income Taxes (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2013
Income Tax Disclosure [Abstract] |  |  |
Effective income tax rate | 9.90% | 33.40% |
Discrete income tax (benefit) | $ 200,000 | $ 100,000 |
Percentage points that reduced effective tax rate | (28.1) | (7.8) |
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |  |
Unrecognized tax benefits, beginning balance | 3,332,000 |  |
Decreases related to expiration of statute of limitations | (160,000) |  |
Unrecognized tax benefits, ending balance | 3,172,000 |  |
Unrecognized tax benefits that would impact effective tax rate | 3,200,000 |  |
Income tax penalties and interest accrued | 500,000 |  | 600,000
Accumulated undistributed foreign earnings | 25,300,000 |  |
Minimum [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Estimated unrecognized deferred tax liability | 1,500,000 |  |
Maximum [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Estimated unrecognized deferred tax liability | $ 2,500,000 |  |

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