PROPERTY, PLANT AND EQUIPMENT (Details) - Summary of property plant and equipment (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	$ 890,983	$ 827,883
Accumulated depreciation and amortization	(520,418)	(474,290)
Total	370,565	353,593
Land, building and building improvements [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	127,714	130,905
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	720,417	661,094
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	$ 42,852	$ 35,884