SHAREHOLDERS' EQUITY (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended			2 Months Ended	12 Months Ended
	Sep. 30, 2014 item multiple Right	Sep. 30, 2013	Sep. 30, 2012	Nov. 26, 2014 Subsequent Event	Sep. 30, 2014 Minimum	Sep. 30, 2014 Maximum
Outstanding preferred stock purchase rights (in shares)	108,232,284
Stock split ratio	2
Number of rights per common stock share	0.5
Number of units that each Right holder is entitled to purchase	1
Number of rights per share	0.001
Purchase price of preferred stock (in dollars per share)	$ 250
Number of business days following the acquisition of fifteen percent or more of common stock that rights are exercisable and transferable	10 days
Percentage of common stock to be acquired for rights to be exercisable and transferable					15.00%
Number of business days following a tender or exchange offer resulting in the acquisition of fifteen percent or more of common stock that rights are exercisable and transferable	10 days
Percentage of common stock to be acquired in a tender or exchange offer for rights to be exercisable and transferable					15.00%
Percentage of assets or earning power sold or transferred allowing Right holder the right to receive common stock of acquiring company					50.00%
Number of multiples of the exercise price that the Right holder has right to receive in value of acquiring company's common stock	2
Redemption price per right (in dollars per shares)	$ 0.01
Number of common shares authorized to be repurchased						4,000,000
Repurchase of common stock (in shares)	0	0	1,747,819	414,992
Aggregate cost of treasury shares purchase			$ 77,610	$ 32,300