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COMMITMENTS AND CONTINGENCIES (Details)
3 Months Ended
Jul. 17, 2015
USD ($)
case
Mar. 31, 2016
USD ($)
Mar. 31, 2015
USD ($)
Loss Contingencies [Line Items]      
Loss from increase in fair value of contingent consideration liabilities   $ 131,000 $ 125,000
TEI      
Loss Contingencies [Line Items]      
Number of active cases | case 50    
Indemnification policy in place $ 3,000,000.0    
Indemnification period - up to fifteen months after close | TEI      
Loss Contingencies [Line Items]      
Period of indemnification 15 months    
Maximum indemnification from acquisition $ 30,000,000    
Indemnification period - up to 3 years after close | TEI      
Loss Contingencies [Line Items]      
Period of indemnification 3 years    
Minimum indemnification from acquisition $ 20,000,000    
Maximum indemnification from acquisition 30,000,000    
Third Party Insurer | TEI      
Loss Contingencies [Line Items]      
Indemnification policy in place $ 3,000,000.0