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Valuation and Qualifying Accounts | 12 Months Ended
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Sep. 30, 2016
Valuation and Qualifying Accounts | Schedule II VALUATION AND QUALIFYING ACCOUNTS Years Ended September 30, 2016, 2015 and 2014 (in thousands)
Year |  | Description |  | Balance at Beginning of Year |  |  | Charged to Costs & Expenses |  |  | Other Changes Add (Deduct) |  | Balance at End of Year |
2016 |  | Allowance for doubtful accounts |  | $ | 6,713 |  |  | $ | (639 | ) |  | $(1,655)(a) |  | $ | 4,419 |
2015 |  | Allowance for doubtful accounts |  | $ | 9,220 |  |  | $ | 3,738 |  |  | $(6,245)(a) |  | $ | 6,713 |
2014 |  | Allowance for doubtful accounts |  | $ | 7,928 |  |  | $ | 7,514 |  |  | $(6,222)(a) |  | $ | 9,220 |
(a) | Bad debts written off (net of recoveries).

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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