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REVENUE FROM CONTRACTS WITH CUSTOMERS - Additional Information (Details) - Product Concentration Risk - Sales Revenue, Net	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Transportation and logistics services
Disaggregation of Revenue [Line Items]
Percentage of gross revenue attributable to services	90.00%	91.00%
Buying, Selling, and Marketing of Produce Items
Disaggregation of Revenue [Line Items]
Percentage of gross revenue attributable to services	8.00%	7.00%
Value-added Logistics Services
Disaggregation of Revenue [Line Items]
Percentage of gross revenue attributable to services	2.00%	2.00%

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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

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-Name Accounting Standards Codification
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- Definition

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+ References

No definition available.

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