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COMMITMENTS AND CONTINGENCIES - Additional Information (Details) | Sep. 30, 2018 USD ($) executive_officer Employee multiple | Dec. 31, 2017 USD ($)
--- | --- | ---
Loss Contingencies [Line Items] |  |
Purchase commitments for inventory | $ | $ 18,500,000 | $ 14,200,000
Commitment With Executive Officers [Member] |  |
Loss Contingencies [Line Items] |  |
Number of executive officers under agreement | executive_officer | 6 |
Number of employees under agreement | Employee | 1 |
Multiple of sum of average annual base salary and bonus agreement terms | multiple | 2 |

X
- Definition The multiple of the sum of the average annual base salary and bonus of the officer, which comprises the lump-sum cash payment to which each executive is entitled, under the agreement. + References No definition available. + Details
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- Definition Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(17)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(19)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(25)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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