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STOCK-BASED COMPENSATION AND EMPLOYEE BENEFIT PLANS (Performance Stock Awards) (Details)
12 Months Ended
Dec. 31, 2015
USD ($)
performance_criteria
$ / shares
shares
Dec. 31, 2014
USD ($)
$ / shares
shares
Dec. 31, 2013
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected forfeiture rate employees 6.00%    
Share-based compensation expense | $ $ 8,600,000 $ 8,800,000 $ 9,000,000
Number of performance criteria, achieved | performance_criteria 1    
Number of performance criteria | performance_criteria 4    
Percentage of original award 0.25    
Performance stock awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance evaluation stock-based compensation 2 years    
Expected forfeiture rate employees 6.00%    
Share-based compensation expense | $ $ 0    
Number of Shares      
Unvested, beginning of period (in shares) | shares 143,875    
Granted (in shares) | shares 168,186    
Vested (in shares) | shares 11,656    
Forfeited (in shares) | shares (113,131)    
Unvested, end of period (in shares) | shares 187,274 143,875  
Weighted Average Grant-Date Fair Value      
Unvested, beginning of period (in dollars per share) | $ / shares $ 60.94    
Granted (in dollars per share) | $ / shares 56.40    
Forfeited (in dollars per share) | $ / shares 61.18    
Vested (in dollars per share) | $ / shares 54.28    
Unvested, end of period (in dollars per share) | $ / shares $ 57.13 $ 60.94  
Total unrecognized compensation cost | $ $ 600,000.0    
Total fair value, vested in period | $ 600,000 $ 0  
Selling, General and Administrative Expenses | Performance stock awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense | $ $ 1,000,000