PROPERTY, PLANT AND EQUIPMENT (Details) - Summary of property plant and equipment (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2012
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	$ 809,021	$ 783,203
Accumulated depreciation and amortization	(460,581)	(426,324)
Total	348,440	356,879
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	128,415	125,330
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	645,023	622,983
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property Plant And Equipment Gross	$ 35,583	$ 34,890