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ACQUISITIONS (SIMOS Narrative) (Details) - USD ($) $ in Thousands | Dec. 01, 2015 | Sep. 23, 2016 | Dec. 25, 2015
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |
Contingent consideration |  |  | $ 19,800 | $ 0
SIMOS Insourcing Solutions Corporation |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash purchase price, net of working capital adjustment |  | $ 66,600 |  |
EBITDA target threshold |  | 87.50% |  |
Contingent consideration |  | $ 18,300 |  |
Maximum | SIMOS Insourcing Solutions Corporation |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Contingent consideration |  | 22,500 |  |
Significant Unobservable Inputs (Level 3) | SIMOS Insourcing Solutions Corporation |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Contingent consideration, liability |  | $ 21,100 |  |
Discount Rate |  | 10.00% |  |
Contingent consideration | [1] |  | $ 19,800 | $ 19,300
[1] | The estimated fair value of the contingent consideration associated with the acquisition of SIMOS, which was estimated using a probability-adjusted discounted cash flow model. Refer to Note 2: Acquisitions for further details regarding the SIMOS acquisition.

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- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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