PROPERTY AND EQUIPMENT - Property and Equipment at Cost (Details) - USD ($) $ in Thousands	Jan. 31, 2024	Jan. 31, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 288,412	$ 268,838
Less: accumulated depreciation	(233,328)	(215,096)
Property and equipment, net	$ 55,084	$ 53,742
Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	5 years	5 years
Property and equipment, gross	$ 2,586	$ 2,437
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 91,329	$ 83,768
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	3 years	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	$ 134,540	$ 130,340
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	3 years	3 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	5 years	5 years
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 59,957	$ 52,293
Computer equipment and software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	2 years	2 years
Computer equipment and software | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of fixed assets	5 years	5 years