EARNINGS PER SHARE EARNINGS PER SHARE (Details) - Basic and diluted EPS from continuing operations - shares shares in Thousands	12 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
EARNINGS (LOSS) PER SHARE (Details) - Basic and diluted EPS from continuing operations [Line Items]
Weighted average shares outstanding - basic	41,005	41,005	41,074
Incremental shares from stock based compensation	1,417	1,642	2,326
Convertible debt due 2017	0	364	709
Weighted average shares outstanding - diluted	42,422	43,011	44,109
Employee Stock Option [Member]
EARNINGS (LOSS) PER SHARE (Details) - Basic and diluted EPS from continuing operations [Line Items]
Anti-dilutive awards excluded from diluted EPS computation	0	0	6

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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