Annual report pursuant to Section 13 and 15(d)

INVESTMENTS - Non-Current Investments (Details)

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INVESTMENTS - Non-Current Investments (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Sep. 30, 2017
Non-current investments [Abstract]    
Equity and fixed income mutual funds $ 22,758 $ 21,649
Life insurance policies 5,894 5,810
Other investments 16,778 10,208
Total non-current investments $ 45,430 $ 37,667