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INCOME TAXES Income Tax Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Income tax provision (benefit)	$ 16,037	$ 13,853
Effective income tax rate	21.90%	36.10%
Income Tax Expense (Benefit) [Abstract]
Income tax provision (benefit)	$ 16,037	$ 13,853

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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