INCOME TAXES (Schedule of Components of Income Tax Provision (Benefit)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Income Tax Disclosure [Abstract]
Current - domestic	$ (1,048)	$ 29	$ (34)
Deferred - domestic	(980)	(980)	6,813
Current - foreign	43,169	54,209	58,218
Deferred - foreign	(8)	(85)	(2,014)
Provision (benefit) for domestic and foreign taxes on income	$ 41,133	$ 53,173	$ 62,983