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FAIR VALUE MEASUREMENTS (Details) (USD $) In Thousands | Sep. 30, 2011 Fair Value on Recurring Basis Fair Value | Jun. 30, 2011 Fair Value on Recurring Basis Fair Value | Sep. 30, 2011 Fair Value on Recurring Basis Fair Value Roosters | Sep. 30, 2011 Fair Value on Recurring Basis Fair Value Provalliance | Jun. 30, 2011 Fair Value on Recurring Basis Fair Value Provalliance | Sep. 30, 2011 Fair Value on Recurring Basis Level 2 | Jun. 30, 2011 Fair Value on Recurring Basis Level 2 | Sep. 30, 2011 Fair Value on Recurring Basis Level 3 Roosters | Sep. 30, 2011 Fair Value on Recurring Basis Level 3 Provalliance | Jun. 30, 2011 Fair Value on Recurring Basis Level 3 Provalliance | Jul. 02, 2011 Roosters | Sep. 30, 2011 Provalliance | Jun. 30, 2011 Provalliance
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Non-current assets |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative instruments | $ 123 | $ 212 |  |  |  | $ 123 | $ 212 |  |  |  |  |  |
Equity call option |  |  | 117 |  |  |  |  | 117 |  |  | 100 |  |
Current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative instruments | 212 | 599 |  |  |  | 212 | 599 |  |  |  |  |  |
Non-current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |
Equity put option |  |  | $ 161 | $ 21,124 | $ 22,700 |  |  | $ 161 | $ 21,124 | $ 22,700 | $ 200 | $ 21,124 | $ 22,700

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