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Selected Account Information - Components of Other Charges, Net (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2017
Jun. 30, 2017
Sep. 30, 2015
Dec. 31, 2014
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2015
Selected Account Information - Schedule Of Selling General And Administrative Expenses Details              
Impairment of assets $ 6,200 $ 1,400 $ 347 $ 1,400 $ 7,639 $ 3,492 $ 1,705
Settlement of lawsuits and other one-time costs         317 1,881 11,684
Loss (gain) on sale of assets         (838) 388 808
Gain on settlement of patron tax         (102) (8,167)
Other charges         $ 7,312 $ 5,761 $ 6,030