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Summary of Significant Accounting Policies -Supplemental Cash Flow (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Mar. 16, 2015 | Oct. 25, 2015
Supplemental Cash Flow Information |  |
Cash amount of ownership interest purchased |  | $ 11,702
Reduction in additional paid-in capital |  | $ 14,035
Shanghai Shangshi Meat Products Co. Ltd. |  |
Supplemental Cash Flow Information |  |
Percent of ownership interest purchased | 19.29% |
Ownership percentage | 100.00% |
Cash amount of ownership interest purchased | $ 11,700 |
Reduction in additional paid-in capital | $ 11,900 |

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