QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Quarterly Financial Information Disclosure [Abstract]
Restructuring and other related charges	$ 2,631	$ 222	$ 429	$ 522	$ 763	$ 994	$ 5,788	$ 721		$ 3,804	$ 8,266
Acquisition related costs	$ 473	$ 992		$ 495						1,960
Loss from debt extinguishment			$ (24,964)						$ 0	$ 38,890	0
Loss on pension settlement								$ 1,392			$ 1,392