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BUSINESS ACQUISITIONS AND DIVESTITURE - WIL Research, Additional Information (Details) - USD ($) |  | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Apr. 04, 2016 | Dec. 31, 2016 | Dec. 30, 2017 | Dec. 31, 2016 | Dec. 26, 2015 | Feb. 10, 2017 | Mar. 30, 2016 | Mar. 29, 2016
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Credit facility |  |  |  |  |  |  | $ 1,650,000,000.00 | $ 1,300,000,000.0
WIL Research |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Purchase price | $ 604,800,000 |  |  |  |  |  |  |
Assumed liabilities | 400,000 |  |  |  |  |  |  |
Purchase price allocation | 577,391,000 |  |  |  |  |  |  |
Cash acquired | 27,400,000 |  |  |  |  |  |  |
Goodwill resulting from transaction | $ 19,000,000 |  |  |  |  | $ 14,800,000 |  |
Transaction and integration costs |  |  | $ 1,700,000 | $ 15,500,000 | $ 3,200,000 |  |  |
Revenue since acquisition |  | $ 176,100,000 |  |  |  |  |  |
Operating income (loss) since acquisition |  | $ 12,500,000 |  |  |  |  |  |
Additional amortization of intangible assets and depreciation of fixed assets |  |  |  | 400,000 | 13,600,000 |  |  |
Reversal of interest expense on borrowings |  |  |  | $ 2,600,000 | 10,500,000 |  |  |
Acquisition-related transaction costs |  |  |  |  | $ 11,500,000 |  |  |

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