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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concertation of Credit Risk (Details) - USD ($) $ in Millions | 12 Months Ended
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Jan. 02, 2022 | Jan. 03, 2021 | Dec. 29, 2019
Customer Concentration Risk | Accounts Receivable | Customer One |  |  |
Concentration [Line Items] |  |  |
Concentration risk, percentage |  | 15.10% |
Customer Concentration Risk | Accounts Receivable | Customer Two |  |  |
Concentration [Line Items] |  |  |
Concentration risk, percentage |  | 11.60% |
Customer Concentration Risk | Accounts Receivable | Customer Three |  |  |
Concentration [Line Items] |  |  |
Concentration risk, percentage |  | 10.60% |
Affiliated entity |  |  |
Concentration [Line Items] |  |  |
Revenue | $ 225.9 | $ 231.2 | $ 426.5
Affiliated entity | Customer Concentration Risk | Total Revenue |  |  |
Concentration [Line Items] |  |  |
Concentration risk, percentage | 28.80% | 27.40% | 35.60%
Affiliated entity | Customer Concentration Risk | Accounts Receivable |  |  |
Concentration [Line Items] |  |  |
Concentration risk, percentage | 9.70% | 39.50% |

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