REVENUE Deferred Revenue (Details) - USD ($) $ in Thousands	Jan. 31, 2020	Jan. 31, 2019
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	$ 40,968	$ 46,409
Deferred Revenue from Contracts with Customers [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	39,512	44,893
Deferred Revenue from Operating Leases and Rental Contracts [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue	$ 1,456	$ 1,516