PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 15,541	$ 14,766	$ 46,100	$ 44,163
Selling, general and administrative expense [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 3,257	$ 2,507	$ 9,688	$ 7,743