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FAIR VALUE MEASUREMENTS: (Details 2) (USD $) |  |  |  |  |  |  | 3 Months Ended |  |  | 3 Months Ended |  |  | 3 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2012 | Jun. 30, 2011 | Mar. 31, 2012 Provalliance | Mar. 31, 2011 Provalliance | Jan. 31, 2008 Provalliance | Jul. 02, 2011 Roosters | Sep. 30, 2011 Equity Call Option Roosters | Mar. 31, 2012 Equity Call Option Roosters | Dec. 31, 2011 Equity Call Option Roosters | Mar. 31, 2012 Equity Put Option Provalliance | Dec. 31, 2011 Equity Put Option Provalliance | Sep. 30, 2011 Equity Put Option Provalliance | Mar. 31, 2011 Equity Put Option Provalliance | Dec. 31, 2010 Equity Put Option Provalliance | Sep. 30, 2010 Equity Put Option Provalliance | Sep. 30, 2011 Equity Put Option Roosters | Mar. 31, 2012 Equity Put Option Roosters | Dec. 31, 2011 Equity Put Option Roosters | Mar. 31, 2011 Preferred Shares | Dec. 31, 2010 Preferred Shares | Sep. 30, 2010 Preferred Shares
Changes in financial instruments measured on recurring basis unobservable input reconciliation calculation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of the period |  |  |  |  |  |  |  | $ 117,000 | $ 117,000 |  |  |  |  |  |  |  |  |  | $ 3,831,000 | $ 3,732,000 | $ 3,502,000
Total realized and unrealized gains (losses): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Included in other comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (83,000) | 99,000 | 230,000
Purchases |  |  |  |  |  |  | 117,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other than temporary impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (3,748,000) |  |
Balance at the end of the period |  |  |  |  |  |  | 117,000 | 117,000 | 117,000 |  |  |  |  |  |  |  |  |  |  | 3,831,000 | 3,732,000
Changes in financial instruments measured on recurring basis unobservable input reconciliation calculation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of the period |  |  |  |  |  |  |  |  |  | 20,443,000 | 21,124,000 | 22,700,000 | 24,082,000 | 24,523,000 | 22,009,000 |  | 161,000 | 161,000 |  |  |
Total realized and unrealized gains (losses): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Included in other comprehensive income (loss) |  |  |  |  |  |  |  |  |  | 446,000 | (681,000) | (1,576,000) | 1,333,000 | (441,000) | 2,514,000 |  |  |  |  |  |
Issuances |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 161,000 |  |  |  |  |
Included in equity in loss of affiliated companies |  |  |  |  |  |  |  |  |  | (20,222,000) |  |  | (2,509,000) |  |  |  |  |  |  |  |
Transfer out of Level 3 |  |  |  |  |  |  |  |  |  |  |  |  | (714,000) |  |  |  |  |  |  |  |
Balance at the end of the period |  |  |  |  |  |  |  |  |  | 667,000 | 20,443,000 | 21,124,000 | 22,192,000 | 24,082,000 | 24,523,000 | 161,000 | 161,000 | 161,000 |  |  |
Equity interest in Provalliance (as a percent) |  |  | 46.70% | 46.70% | 30.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  | 60.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | 292,307,000 | 313,411,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of debt | $ 312,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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