| LEGAL PROCEEDINGS AND CONTINGENCIES LEGAL PROCEEDINGS AND CONTINGENCIES (Details) | 1 Months Ended | 12 Months Ended | 24 Months Ended | |
|---|---|---|---|---|
| Aug. 31, 2010  Freight_Forwarding_Companies | Jul. 31, 2009  Defendants | Dec. 31, 2015  Cases | Dec. 31, 2007  Cases | |
| Loss Contingencies [Line Items] | ||||
| Number of class-action cases filed | 4 | |||
| Number of outstanding cases | 1 | |||
| Number of freight forwarding companies | Freight_Forwarding_Companies | 45 | |||
| Number of defendants | Defendants | 60 | |||
| X | ||||||||||
| 
- Definition Number of Defendants No definition available. 
 | 
| X | ||||||||||
| 
- Definition Number of Freight Forwarding Companies No definition available. 
 | 
| X | ||||||||||
| 
- Definition Number of Outstanding Cases No definition available. 
 | 
| X | ||||||||||
| 
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
 | 
| X | ||||||||||
| 
- Definition The total number of new claims filed pertaining to a loss contingency during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 |