v3.6.0.2
INCOME TAXES - Schedule of Net Operating Loss and Tax Credit Carryforwards (Details)
$ in Thousands
Dec. 31, 2016
USD ($)
Federal  
Operating Loss and Tax Credit Carryforwards [Line Items]  
Net operating losses $ 115,331
State  
Operating Loss and Tax Credit Carryforwards [Line Items]  
Net operating losses 79,084
Research and Development | Federal  
Operating Loss and Tax Credit Carryforwards [Line Items]  
Tax credits 5,816
Research and Development | State  
Operating Loss and Tax Credit Carryforwards [Line Items]  
Tax credits $ 6,712