Annual report pursuant to Section 13 and 15(d)

LEGAL PROCEEDINGS AND CONTINGENCIES LEGAL PROCEEDINGS AND CONTINGENCIES (Details)

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LEGAL PROCEEDINGS AND CONTINGENCIES LEGAL PROCEEDINGS AND CONTINGENCIES (Details)
1 Months Ended 12 Months Ended 24 Months Ended
Aug. 31, 2010
Freight_Forwarding_Companies
Dec. 31, 2016
Cases
Dec. 31, 2007
Cases
Commitments and Contingencies Disclosure [Abstract]      
Number of class-action cases filed     4
Number of outstanding cases   1  
Number of freight forwarding companies | Freight_Forwarding_Companies 45