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ACQUISITIONS AND DECONSOLIDATION (Details 3) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 26, 2015 | Dec. 27, 2014
Deconsolidation |  |  |
Deconsolidation of subsidiary | $ (13,652) | $ 0 | $ 0
Maximum |  |  |
Deconsolidation |  |  |
Ownership interest (as a percent) | 50.00% |  |

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