PROPERTY AND EQUIPMENT - Property and Equipment at Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 225,670	$ 217,149
Less: accumulated depreciation	(176,865)	(160,085)
Property and equipment, net	$ 48,805	57,064
Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	5 years
Property and equipment, gross	$ 1,882	1,724
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 77,491	$ 74,598
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	3 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	13 years	13 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 102,813	$ 100,572
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	3 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	10 years	10 years
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 43,484	$ 40,255
Computer equipment and software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	2 years
Computer equipment and software | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	5 years	5 years