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Debt and Credit Arrangements (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Short-term debt
Short-term debt	$ 468	$ 2,631
Current portion of long-term debt	251	601
Long-term debt
Total long-term debt	9,573	28,592
Less current portion	(251)	(601)
Total long-term debt, less current portion	9,322	27,991
Total debt	9,790	30,622
USD Denominated Long-term Debt [Member]
Long-term debt
Total long-term debt	9,236	27,633
Australian Dollar Denominated Term Loans Long-term Debt [Member]
Long-term debt
Total long-term debt	70	470
Brazilian Real Denominated Term Loan Long-Term Debt [Member]
Long-term debt
Total long-term debt	267	489
Brazilian Real Denominated Secured Notes Short Term Debt [Member]
Short-term debt
Short-term debt	0	2,030
New Zealand Dollar [Member]
Short-term debt
Short-term debt	$ 217	$ 0

X

- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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