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GOODWILL AND OTHER INTANGIBLE ASSETS (Schedule Of Intangible Assets Gross Carrying Amounts And Accumulated Amortization) (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Sep. 30, 2015
Goodwill and Other Intangible Assets [Line Items]    
Goodwill $ 305,758 $ 291,157
Less: accumulated amortization 51,881 46,292
Patents [Member]    
Goodwill and Other Intangible Assets [Line Items]    
Gross carrying amount 1,000 1,000
Less: accumulated amortization 800 800
Net 200 200
Capitalized Software [Member]    
Goodwill and Other Intangible Assets [Line Items]    
Gross carrying amount 49,100 45,500
Less: accumulated amortization 23,400 20,100
Net 25,700 25,400
Customer Relationships [Member]    
Goodwill and Other Intangible Assets [Line Items]    
Gross carrying amount 84,700 70,500
Less: accumulated amortization 26,800 24,700
Net 57,900 45,800
Other [Member]    
Goodwill and Other Intangible Assets [Line Items]    
Gross carrying amount 2,800 2,600
Less: accumulated amortization 600 400
Net 2,200 2,200
Trade names [Member]    
Goodwill and Other Intangible Assets [Line Items]    
Trade names $ 118,200 $ 117,100