OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Summary of Other Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Pre-tax
Foreign currency translation adjustments	$ (1,289)	$ (13,479)
Pension and other defined benefit plans	14,244	836
Cash flow hedges	130	2,272
Total other comprehensive income (loss)	13,085	(10,371)
Tax
Pension and other defined benefit plans	(4,685)	(292)
Cash flow hedges	(42)	(649)
Total other comprehensive income (loss)	(4,727)	(941)
Net of tax
Foreign currency translation adjustments	(1,289)	(13,479)
Pension and other defined benefit plans	9,559	544
Cash flow hedges	88	1,623
Pension and other post retirement plans	$ 8,358	$ (11,312)

Amount before tax, after reclassification adjustments of other comprehensive income (loss).

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