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STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION FOR THE YEAR (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
May 24, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock reserved for issuance to participants 1,767,507     2,400,000
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost     $ 2,541  
Stock-based compensation $ 1,293 $ 1,449 4,231  
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense $ 69 90 362  
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock Option Award Exercise Price as a Percentage of the Fair Market Value of a Share of Common Stock 100.00%      
Share-based compensation arrangement award vesting period 1 year 10 months 6 days      
Stock-based compensation $ 0 17 $ 23  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 0 $ 0    
Weighted average service period 0 days 0 days    
Restricted stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted, number of share of restricted stock (units) 0 0 1,270,500  
Stock-based compensation $ 0 $ 678 $ 3,188  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 0 $ 0    
Weighted average service period 0 days 0 days    
Restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of Shares Issued under a Share-based Compensation Arrangement, Which Have Vesting Conditions associated with Performance and Service Conditions 990,000      
Granted, number of share of restricted stock (units) 1,404,128 763,477 372,739  
Stock-based compensation $ 1,293 $ 754 $ 1,020  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 677 $ 195    
Weighted average service period 1 year 6 months 18 days 1 year 6 months 18 days    
Restricted Stock Unit to Board of Directors        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted, number of share of restricted stock (units) 414,128      
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number 873,784      
First Anniversary        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 33.00%      
Second Anniversary        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 33.00%      
Third Anniversary        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 34.00%      
Americas, Asia Pacific and Europe [Member] | Restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other that Options, Percentage of Shares Issued Based on Performance of Adjusted EBITDA 80.00%      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other that Options, Percentage of Shares Issued Based on Performance of Group Adjusted EBITDA 20.00%      
Corporate, Non-Segment [Member] | Restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other that Options, Percentage of Shares Issued Based on Performance of Group Adjusted EBITDA 100.00%      
Minimum | Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 5 years      
Maximum | Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years