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Other Assets (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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Components of other assets [Abstract] |  |
Deferred taxes | $ 26,302 | $ 29,661
Deposits for noncancelable operating leases | 15,189 | 15,559
Deposit for customs assessment (Note 20) | 46,653 | 50,719
Cash surrender value for life insurance policies | 18,605 | 14,925
Other | 12,004 | 4,721
Total other assets | $ 118,753 | $ 115,585

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