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INVESTMENTS - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017
Investments, Debt and Equity Securities [Abstract] |  |
Trading securities cost (in excess of) or below market value | $ 838 | $ 785
Maximum ownership interests in various entities recorded under the cost method | 20.00% |
Ownership interest recorded as cost method investment | $ 11,747 |
Proceeds from the sale of cost method investments | 9,159 |
Realized gain on disposition of cost method investment | $ 3,771 |

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- Definition Equity Securities, FV-NI, Realized Gain + References No definition available. + Details
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- Definition The maximum ownership interests in various entities, which are recorded under the cost method of accounting and are included in equity investments. + References No definition available. + Details
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- Definition Proceeds from Sale of Debt and Equity Securities, FV-NI, Held-for-investment + References No definition available. + Details
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- Definition This element represents the net excess or deficiency of the fair value of an investment (security, contract) over or under its cost (face amount, notional amount), respectively, which excess value or deficiency has not been recognized in earnings of the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=50485924&loc=SL6090603-123010 + Details
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