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NATURE OF OPERATIONS - Redemption (Details) - shares |  | 1 Months Ended | 4 Months Ended | 11 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Feb. 04, 2015 | Dec. 30, 2015 | Dec. 30, 2015 | Dec. 30, 2015 | Dec. 28, 2016 | Dec. 30, 2015
Class of Stock [Line Items] |  |  |  |  |  |
Units acquired during the period (shares) | 5,968,841 |  | 2,848,035 |  | 5,207,149 | 6,003,308
Class A Common Stock | Common stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Shares issued during the period | 5,968,841 |  |  | 5,750,000 |  |
Class B Common Stock | Common stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Shares issued during the period | 30,160,694 |  |  |  |  |
Effect of redemption (shares) | 5,968,841 |  | 2,848,035 |  | 5,207,149 |
USC Merger |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Units acquired during the period (shares) |  | 1,727,804 |  |  |  |
USC Merger | Class A Common Stock | Common stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Shares issued during the period |  | 1,727,804 |  |  |  |
USC Merger | Class B Common Stock | Common stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Effect of redemption (shares) |  | 1,727,804 |  |  |  |

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