SUMMARY OF SIGNIFICANT EVENTS AND ACCOUNTING POLICIES (Details) $ in Thousands		1 Months Ended	3 Months Ended
	May 11, 2020 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Basis of Presentation and Principles of Consolidation
Number of operating segments | segment			1
Allowance for doubtful accounts		$ 100	$ 100		$ 100
Restructuring
Severance Costs				$ 11,300
Restructuring			$ 418	$ 11,271
Reduction of discretionary cash incentives		$ 1,600
Subsequent event
Restructuring
Business exit costs	$ 1,300