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COMMITMENTS AND CONTINGENCIES (Details) - USD ($)
$ in Millions
1 Months Ended
Sep. 01, 2016
Jul. 06, 2016
Nov. 06, 2016
Sep. 30, 2016
Loss Contingencies [Line Items]        
Unconditional purchase obligations       $ 173.2
GN Netcom, Inc. vs. Plantronics, Inc. [Member]        
Loss Contingencies [Line Items]        
Punitive sanctions awarded against Plantronics, Inc.   $ 3.0    
Accrued amounts       5.0
GN Netcom, Inc. vs. Plantronics, Inc. [Member] | Punitive Sanctions [Member]        
Loss Contingencies [Line Items]        
Accrued amounts       3.0
Payment of punitive damages $ 3.0      
GN Netcom, Inc. vs. Plantronics, Inc. [Member] | Estimate of Fees and Costs Incurred [Member]        
Loss Contingencies [Line Items]        
Accrued amounts       $ 2.0
Expected payment [Member] | GN Netcom, Inc. vs. Plantronics, Inc. [Member] | Punitive Sanctions [Member]        
Loss Contingencies [Line Items]        
Payment of punitive damages     $ 1.9