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INCOME TAXES - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 27, 2017 | Sep. 28, 2016 | Sep. 27, 2017 | Sep. 28, 2016 | Dec. 28, 2016
Income Tax Contingency [Line Items] |  |  |  |  |
Effective income tax rate reconciliation (in percentage) | 24.10% | 26.50% | 27.50% | 26.60% |
Noncontrolling Interest, Ownership Percentage by Parent, Weighted Average | 70.90% | 66.10% | 70.30% | 61.50% |
Units acquired during the period (in shares) |  |  | 1,009,727 |  |
Deferred tax asset recognized as a result of investment in partnership |  |  | $ 9,883,000 |  |
Deferred Tax Asset, Investment in Partnership | $ 216,285,000 |  | 216,285,000 |  |
Valuation allowance, deferred tax asset | 15,679,000 |  | 15,679,000 |  |
Deferred tax asset related to additional tax basis |  |  | 5,216,000 |  |
Uncertain tax positions | $ 0 |  | $ 0 |  |
Percentage of tax benefits due to equity owners | 85.00% |  | 85.00% |  |
Tax Receivable Agreement Payments To Related Parties | $ 0 | $ 0 | $ 1,471,000 | $ 0 |
Percentage of tax benefits expected to be realized | 15.00% |  | 15.00% |  |
Establishment of liabilities under tax receivable agreement |  |  | $ 12,918,000 | $ 90,776,000 |
Liabilities under tax receivable agreement | $ 283,961,000 |  | 283,961,000 |  | $ 272,482,000
Current portion of liabilities under tax receivable agreement | $ 3,140,000 |  | $ 3,140,000 |  | $ 4,580,000
Redemption or Exchange of Units |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Units acquired during the period (in shares) |  |  | 685,800 | 4,706,663 |

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