OVERVIEW AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Change in Accounting Estimate [Line Items]
Impact on operating loss	$ (7,520)	$ 5,547	$ (12,499)	$ 9,323
Change in Contract Revenue Estimates [Member]
Change in Accounting Estimate [Line Items]
Impact on operating loss	$ 3,600		$ 7,400