SEGMENTS - Information of Total Assets for Company's Reportable Segments (Details) - USD ($) $ in Thousands	Jan. 31, 2020	Jan. 31, 2019
Segment Reporting Information [Line Items]
Total assets	$ 2,565,137	$ 2,208,058
Corporate Segment
Segment Reporting Information [Line Items]
Total assets	380,130	182,452
Operating Segments | Wholesale
Segment Reporting Information [Line Items]
Total assets	1,912,175	1,834,610
Operating Segments | Retail
Segment Reporting Information [Line Items]
Total assets	$ 272,832	$ 190,996