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Debt (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended |
--- | --- | ---
Sep. 30, 2012 | Dec. 31, 2011
Short-term debt | $ 12,168 |  | $ 39,181 |
Long-term debt: |  |  |  |
Long-term debt | 210,128 |  | 227,957 |
Less: current portion | (28,214) |  | (44,246) |
Long-term debt | 181,914 |  | 183,711 |
Senior Notes [Member] |  |  |  |
Long-term debt: |  |  |  |
Long-term debt | 174,099 | [1] | 172,271 | [1]
Long-term Debt, Weighted Average Interest Rate | 9.50% | [1] |  |
Debt, Maturity | Oct - 2017 | [1] |  |
Pst Notes Payable [Member] |  |  |  |
Short-term debt | 22,584 |  | 38,296 |
Long-term debt: |  |  |  |
Long-term debt | 11,513 |  | 15,697 |
Debt Instrument Maturity Period Range Start | 2013 |  |  |
Debt Instrument Maturity Period Range End | 2019 |  |  |
Pst Notes Payable [Member] | Minimum [Member] |  |  |  |
Long-term debt: |  |  |  |
Short-term debt, Weighted Average Interest as of September 30, 2012 | 3.65% |  |  |
Long-term Debt, Weighted Average Interest Rate | 4.00% |  |  |
Pst Notes Payable [Member] | Maximum [Member] |  |  |  |
Long-term debt: |  |  |  |
Short-term debt, Weighted Average Interest as of September 30, 2012 | 4.99% |  |  |
Long-term Debt, Weighted Average Interest Rate | 4.50% |  |  |
Suzhou Long Term Note [Member] |  |  |  |
Long-term debt: |  |  |  |
Long-term debt | 1,432 |  | 1,430 |
Long-term Debt, Weighted Average Interest Rate | 7.50% |  |  |
Debt, Maturity | Aug - 2013 |  |  |
Other [Member] |  |  |  |
Long-term debt: |  |  |  |
Other Long-term debt | 500 |  | 263 |
Letter Of Credit [Member] |  |  |  |
Short-term debt | 11,000 |  | 38,000 |
Long-term debt: |  |  |  |
Short-term debt, Weighted Average Interest as of September 30, 2012 | 1.64% |  |  |
Debt, Maturity | within 1 year |  |  |
Bcs Revolver [Member] |  |  |  |
Short-term debt | $ 1,168 |  | $ 1,181 |
Long-term debt: |  |  |  |
Short-term debt, Weighted Average Interest as of September 30, 2012 | 5.75% |  |  |
Debt, Maturity | Sept - 2013 |  |  |
Pst Term Loans [Member] |  |  |  |
Long-term debt: |  |  |  |
Debt, Maturity | Various 2012 - 2013 |  |  |
[1] | Weighted average interest rate excludes the impact of the Company's interest rate swap and the accretion of debt discount.

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