STOCKHOLDERS' EQUITY - ISSUANCE OF CONVERTIBLE PREFERRED STOCK (Details) - USD ($) $ in Thousands			3 Months Ended
	May 07, 2020	Dec. 04, 2019	Apr. 30, 2020
Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Issuance of Convertible Preferred Stock		$ 400,000	$ 400,000
Series A Preferred Stock | Subsequent Event [Member]
Class of Stock [Line Items]
Issuance of Convertible Preferred Stock	$ 200,000