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Income Tax Expense (Benefit) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Income tax expense from Continuing Operations $ 19,594 $ 18,335 $ 17,408
Income tax (benefit) expense from Discontinued Operations (6,034) (5,215) 7,397
Total income tax expense $ 13,560 $ 13,120 $ 24,805