INTANGIBLES - Textuals (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Business Acquisition [Line Items]
Proceeds from shares issuance			$ 75,000
Intangible assets amortization expense	$ 4,600	$ 4,500	2,500
Goodwill	$ 261,137	262,710	$ 269,262
Goodwill written off		700
DKI
Business Acquisition [Line Items]
Reduction in goodwill related to unrecorded indemnification obligations from LVMH		$ 9,000