OTHER EXPENSE (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Other Income and Expenses [Abstract]
Foreign currency transaction gain (loss), before tax	$ (985)	$ 436	$ (1,525)	$ 679
Investment income, net	$ 517	$ 15	$ 563	$ 127