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RESTRUCTURING - Restructuring Reserve (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Restructuring Reserve [Roll Forward]        
Balance at beginning of period $ 7,002   $ 0  
Accrual:        
Continuing Operations 82 $ 0 5,369 $ 0
Discontinued Operations 297   3,515  
Total 379   8,884  
Payments (6,694)   (8,197)  
Balance at end of period 687   687  
Severance and other employee related costs        
Accrual:        
Continuing Operations 82   5,369  
Discontinued Operations 297   2,620  
Total 379   7,989  
Payments (5,799)   (7,302)  
Other restructuring expense        
Accrual:        
Continuing Operations 0   0  
Discontinued Operations 0   895  
Total 0   895  
Payments $ (895)   $ (895)