INTANGIBLE ASSETS - Intangible assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2018
Goodwill And Intangible Assets [Line Items]
Subtotal	$ 77,423	$ 77,163
Accumulated amortization	(39,060)	(34,759)
Total finite-lived intangible assets	38,363	42,404
Indefinite-lived intangible assets
Goodwill	260,622	261,137	$ 262,710
Trademarks	438,658	439,742
Total indefinite-lived intangible assets	699,280	700,879
Total intangible assets, net	$ 737,643	743,283
Minimum
Indefinite-lived intangible assets
Estimated Life	5 years
Maximum
Indefinite-lived intangible assets
Estimated Life	17 years
Licenses
Goodwill And Intangible Assets [Line Items]
Subtotal	$ 19,258	19,395
Accumulated amortization	(16,107)	(15,692)
Total finite-lived intangible assets	$ 3,151	$ 3,703
Indefinite-lived intangible assets
Estimated Life	14 years	14 years
Trademarks
Goodwill And Intangible Assets [Line Items]
Subtotal	$ 2,194	$ 2,194
Accumulated amortization	$ (2,194)	$ (2,194)
Trademarks | Minimum
Indefinite-lived intangible assets
Estimated Life	8 years	8 years
Trademarks | Maximum
Indefinite-lived intangible assets
Estimated Life	12 years	12 years
Customer relationships
Goodwill And Intangible Assets [Line Items]
Subtotal	$ 48,214	$ 48,261
Accumulated amortization	(14,831)	(11,887)
Total finite-lived intangible assets	$ 33,383	$ 36,374
Customer relationships | Minimum
Indefinite-lived intangible assets
Estimated Life	15 years	15 years
Customer relationships | Maximum
Indefinite-lived intangible assets
Estimated Life	17 years	17 years
Other
Goodwill And Intangible Assets [Line Items]
Subtotal	$ 7,757	$ 7,313
Accumulated amortization	(5,928)	(4,986)
Total finite-lived intangible assets	$ 1,829	$ 2,327
Other | Minimum
Indefinite-lived intangible assets
Estimated Life	5 years	5 years
Other | Maximum
Indefinite-lived intangible assets
Estimated Life	10 years	10 years