QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Quarterly Financial Information Disclosure [Abstract]
Restructuring and other related charges	$ 4,247
Loss from debt extinguishment		$ 0	$ 0	$ 38,890
Loss on pension settlement				$ 0