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NOTES PAYABLE AND OTHER LIABILITIES - Long-term debt (Details) - USD ($) $ in Thousands	Apr. 30, 2021	Jan. 31, 2021	Apr. 30, 2020
Debt Instrument [Line Items]
Total	$ 509,784	$ 507,950	$ 900,682
Long-term Debt
Debt Instrument [Line Items]
Subtotal	537,701	537,126	929,504
Less: Net debt issuance costs	(7,218)	(7,643)	(6,748)
Debt discount	(15,594)	(17,131)	(21,562)
Current portion of long-term debt	(5,105)	(4,402)	(512)
Secured notes
Debt Instrument [Line Items]
Debt issuance costs	8,500
Secured notes \| Long-term Debt
Debt Instrument [Line Items]
Subtotal	400,000	400,000
Term Loan \| Long-term Debt
Debt Instrument [Line Items]
Subtotal			300,000
Revolving credit facility
Debt Instrument [Line Items]
Debt issuance costs	6,800	7,200	3,900
Revolving credit facility \| Long-term Debt
Debt Instrument [Line Items]
Subtotal			500,000
LVMH Note
Debt Instrument [Line Items]
Debt discount	(40,000)
LVMH Note \| Long-term Debt
Debt Instrument [Line Items]
Subtotal	125,000	125,000	125,000
Unsecured Loan \| Long-term Debt
Debt Instrument [Line Items]
Subtotal	8,816	9,119	$ 4,504
Overdraft facilities \| Long-term Debt
Debt Instrument [Line Items]
Subtotal	$ 3,885	$ 3,007