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Debt Schedule Of Debt Outstanding (Tables) | 6 Months Ended
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Mar. 31, 2019
Debt Instrument [Line Items] |
Schedule of Long-term Debt Instruments [Table Text Block] | Debt is summarized as follows:
|  |  | Interest Rates (%)
(Thousands of Dollars) | March 31 2019 |  | September 30 2018 |  | March 31 2019
Revolving Facility | — |  | — |  | 6.1
1st Lien Term Loan | — |  | 6,303 |  | 8.5
Notes | 385,000 |  | 385,000 |  | 9.5
2nd Lien Term Loan | 91,455 |  | 93,556 |  | 12.0
| 476,455 |  | 484,859 |  |
Unamortized debt issue costs | (15,529 | ) | (17,055 | ) |
Current maturities of long-term debt | 7,318 |  | 7,027 |  |
Total long-term debt | 453,608 |  | 460,777 |  |

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