PROPERTY, PLANT AND EQUIPMENT (Details) - Summary of Property Plant and Equipment (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Sep. 30, 2013
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	$ 865,049	$ 827,883
Accumulated depreciation and amortization	(507,167)	(474,290)
Total	357,882	353,593
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	130,974	130,905
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	697,621	661,094
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	$ 36,454	$ 35,884