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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration of Risk (Details) - Customer concentration - Net Sales | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
TCCC |  |  |
Concentration of risk |  |  |
Percentage of net sales | 2.00% | 2.00% | 3.00%
Coca-Cola Consolidated, Inc |  |  |
Concentration of risk |  |  |
Percentage of net sales | 12.00% | 13.00% | 13.00%
Reyes Coca-Cola Bottling |  |  |
Concentration of risk |  |  |
Percentage of net sales | 11.00% | 11.00% | 12.00%
Coca-Cola European Partners |  |  |
Concentration of risk |  |  |
Percentage of net sales | 10.00% | 10.00% | 10.00%

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