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INVESTMENTS (Tables) | 12 Months Ended
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Sep. 30, 2017
Investments, Debt and Equity Securities [Abstract] |
Non-Current Investments | At September 30, 2017 and 2016, non-current investments were as follows:
| 2017 |  | 2016
Equity and fixed income mutual funds | $ | 21,649 |  |  | $ | 19,790 |
Other investments | 16,018 |  |  | 11,575 |
| $ | 37,667 |  |  | $ | 31,365 |

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