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SEGMENT AND GEOGRAPHIC INFORMATION - Concentration (Details) - item | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Wal-Mart | Net product sales | A major customer |  |  |
Concentration of Risk |  |  |
Percentage of concentration risk | 24.10% | 24.00% | 23.30%
Dollar Tree | Net product sales | A major customer |  |  |
Concentration of Risk |  |  |
Percentage of concentration risk | 11.20% | 10.90% | 10.40%
McLane | Net product sales | A major customer |  |  |
Concentration of Risk |  |  |
Percentage of concentration risk | 17.40% | 16.90% | 16.30%
Three Largest Customers | Accounts receivable |  |  |
Concentration of Risk |  |  |
Number of customers | 3 | 3 |
Three Largest Customers | Accounts receivable | A major customer |  |  |
Concentration of Risk |  |  |
Percentage of concentration risk | 31.00% | 32.00% |

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13531-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13537-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
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