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Selected Account Information - Components of Other Charges, Net (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Impairment of assets $ 4,317 $ 1,705 $ 2,294
Settlement of lawsuits and other one-time costs 1,881 11,684 3,696
Loss (gain) on sale of assets (437) 808 279
Gain on settlement of patron tax (8,167)
Other charges $ 5,761 $ 6,030 $ 6,269