PROPERTY, PLANT AND EQUIPMENT (Details) - Summary of Property Plant and Equipment - USD ($) $ in Thousands	Jun. 30, 2016	Sep. 30, 2015
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	$ 974,362	$ 926,205
Accumulated depreciation and amortization	(586,213)	(546,233)
Total	388,149	379,972
Land, building and building improvements [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	136,986	131,546
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	789,379	747,194
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	$ 47,997	$ 47,465