OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Summary of Amounts Reclassified from Accumulated Other Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Pension amortization	$ (2,375)	$ (2,182)	$ (1,934)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	1,370	0
Gain (Loss) on Hedging Activity	(752)
Cash flow hedges		1,223	0
Total before tax	(3,127)	411	(1,934)
Tax	225	(164)	677
Net of tax	$ (2,902)	$ 247	$ (1,257)