OTHER COMPREHENSIVE INCOME (LOSS)-AOCI (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Sep. 30, 2015
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)	$ (95,166)	$ (91,188)
Foreign currency translation adjustments [Member]
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)	(63,527)	(60,178)
Pension and other defined benefit plans [Member]
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)	(31,306)	(31,692)
Gain on cash flow hedge [Member]
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)	$ (333)	$ 682