Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets - Other Intangible Assets (Details)

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Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Sep. 30, 2016
Other Intangible Assets [Abstract]    
Carrying Amount $ 514,354 $ 467,942
Accumulated Amortization (84,096) (74,101)
Net 430,258 393,841
Trade Names Not Subject to Amortization    
Other Intangible Assets [Abstract]    
Carrying Amount 168,467 168,467
Accumulated Amortization 0 0
Net 168,467 168,467
Trade names    
Other Intangible Assets [Abstract]    
Carrying Amount 1,756 1,814
Accumulated Amortization (1,756) (1,802)
Net 0 12
Customer relationships    
Other Intangible Assets [Abstract]    
Carrying Amount 329,925 286,595
Accumulated Amortization (71,597) (61,706)
Net 258,328 224,889
Copyrights/patents/other    
Other Intangible Assets [Abstract]    
Carrying Amount 14,206 11,066
Accumulated Amortization (10,743) (10,593)
Net $ 3,463 $ 473