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Income Taxes NOL Carryforwards (Details) (USD $) In Thousands, unless otherwise specified |  |  | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2011 New Zealand | Dec. 31, 2011 State
NOL Carryforwards |  |  |  |
Gross Amount |  |  | $ 17,394 | $ 226,889
Valuation Allowance |  |  | (4,870) | (12,926)
Expiration |  |  | None | 15 years
Total Valuation Allowance | $ (18,811) | $ (23,944) |  |

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