INCOME TAXES Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefit (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ (10,615)	$ (10,822)	$ (10,215)
Gross decreases - tax positions in prior period	290	354	0
Gross increases - current-period tax positions	0	(147)	(47)
Gross increases - tax positions in prior period	0	0	(560)
Ending balance	$ (10,325)	$ (10,615)	$ (10,822)