BUSINESS COMBINATIONS BUSINESS COMBINATIONS - CONTACT SOLUTIONS (Details) - Enterprise Intelligence - Contact Solutions, LLC - USD ($)
$ in Thousands
3 Months Ended
Feb. 19, 2016
Apr. 30, 2016
Business Acquisition [Line Items]    
Cash Paid at Closing $ 66,915  
Post-closing purchase price adjustment 2,439  
Deferred revenue - current and long-term 642  
Intangible Asset - Undelivered Performance Obligations 2,900  
Transaction and Related Costs, Including Integration Costs   $ 300
Prepaid Expenses and Other Current Assets    
Business Acquisition [Line Items]    
Intangible Asset - Undelivered Performance Obligations 1,200  
Other Assets    
Business Acquisition [Line Items]    
Intangible Asset - Undelivered Performance Obligations $ 1,700