INCOME TAXES (Schedule of Components of Income Tax Provision (Benefit)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Income Tax Disclosure [Abstract]
Current—domestic	$ 161	$ (1,048)	$ 29
Deferred—domestic	(862)	(980)	(980)
Current—foreign	55,233	43,169	54,209
Deferred—foreign	45	(8)	(85)
Provision (benefit) for domestic and foreign taxes on income	$ 54,577	$ 41,133	$ 53,173