INVESTMENTS - Non-Current Investments (Details) - USD ($) $ in Thousands |
Sep. 30, 2017 |
Sep. 30, 2016 |
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| Non-current investments [Abstract] | ||
| Equity and fixed income mutual funds | $ 21,649 | $ 19,790 |
| Other investments | 16,018 | 11,575 |
| Total non-current investments | $ 37,667 | $ 31,365 |
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- Definition The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of investments classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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