PROPERTY, PLANT AND EQUIPMENT (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 341,029	$ 338,522
Less: Accumulated depreciation and amortization of assets under capital leases	(216,009)	(207,731)
Net property, plant and equipment	125,020	130,791	115,811
Depreciation expense, including amortization of assets recorded under capital leases	20,863	21,271	22,568
Impairment expense	968
Impairment expense, cost of goods sold	842
Impairment expense, selling and marketing	126
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	21,566	21,597
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	101,627	100,779
Other Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	181,117	171,595
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	6,417	6,247
Technology Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	25,346	23,318
Assets Held under Capital Leases [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	66	9,820
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 4,890	$ 5,166