INVESTMENTS - Narrative (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Dec. 31, 2018 |
|
| Investments, Debt and Equity Securities [Abstract] | |||
| Trading securities cost (in excess of) or below market value | $ 941 | $ 838 | |
| Maximum ownership interests in various entities recorded under the cost method | 20.00% | ||
| Percentage of voting rights sold | 51.00% | ||
| Payments to equity-method investments | $ 29,148 | ||
| 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 | ||
| X | ||||||||||
- Definition The maximum ownership interests in various entities, which are recorded under the cost method of accounting and are included in equity investments. No definition available.
|
| X | ||||||||||
- Definition Proceeds from Sale of Debt and Equity Securities, FV-NI, Held-for-investment No definition available.
|
| X | ||||||||||
- Definition Sale Of Subsidiary, Percentage Of Voting Rights Sold No definition available.
|
| X | ||||||||||
- Definition Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value. No definition available.
|
| X | ||||||||||
- Definition Amount of realized gain from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|