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SHAREHOLDERS' EQUITY (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2015 USD ($) Right multiple item $ / shares shares | Sep. 30, 2014 shares | Sep. 30, 2013 shares
Outstanding preferred stock purchase rights (in shares) | 107,767,915 |  |
Stock split ratio | 2 |  |
Number of rights per common stock share | Right | 0.5 |  |
Number of units that each Right holder is entitled to purchase | item | 1 |  |
Number of rights per share | 0.001 |  |
Purchase price of preferred stock (in dollars per share) | $ / shares | $ 250 |  |
Number of business days following the acquisition of fifteen percent or more of common stock that rights are exercisable and transferable | 10 days |  |
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 |  |
Number of multiples of the exercise price that the Right holder has right to receive in value of acquiring company's common stock | multiple | 2 |  |
Redemption price per right (in dollars per shares) | $ / shares | $ 0.01 |  |
Repurchase of common stock (in shares) | 810,097 | 0 | 0
Aggregate cost of treasury shares purchase | $ | $ 59,654 |  |
Minimum |  |  |
Percentage of common stock to be acquired for rights to be exercisable and transferable | 15.00% |  |
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% |  |
Maximum |  |  |
Number of common shares authorized to be repurchased | 4,000,000 |  |

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- Definition Represents the number of business days following the commencement of a tender offer or exchange offer resulting in an acquisition of fifteen percent or more of the entity's outstanding common stock that the rights will become exercisable and transferable apart from common stock. + References No definition available. + Details
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- Definition Represents the percentage of assets or earning power sold or transferred which would allow the Right holder the right to receive the common stock of the acquiring company with a value that is twice the right's exercise price. + References No definition available. + Details
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