Annual report pursuant to Section 13 and 15(d)

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details)

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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2018
Allowance for Doubtful Accounts      
Valuation and qualifying accounts [Roll Forward]      
Balance at Beginning of Period $ 10,846 $ 11,158 $ 11,622
Additions charged to expense 1,736 2,787 855
Additions charged to other Accounts 15 20 762
Deductions (2,979) (3,119) (2,081)
Balance at End of Period 9,618 10,846 11,158
Deferred Tax Asset Valuation Allowance      
Valuation and qualifying accounts [Roll Forward]      
Balance at Beginning of Period 15,352 15,188 21,917
Additions charged to expense 6,982 821 2,482
Additions charged to other Accounts 0 0 (8,510)
Deductions 193 (657) (701)
Balance at End of Period $ 22,527 $ 15,352 $ 15,188