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NOTES PAYABLE AND OTHER LIABILITIES - Long-term debt (Details) - USD ($) $ in Thousands	Jan. 31, 2021	Aug. 06, 2020	Jan. 31, 2020
Debt Instrument [Line Items]
Total	$ 507,950		$ 396,794
Debt issuance costs	7,200		4,600
Long-term Debt
Debt Instrument [Line Items]
Subtotal	537,126		427,860
Less: Net debt issuance costs	(7,643)		(7,402)
Debt discount	(17,131)		(22,991)
Current portion of long-term debt	(4,402)		(673)
Secured notes
Debt Instrument [Line Items]
Debt issuance costs	8,500
Secured notes \| Long-term Debt
Debt Instrument [Line Items]
Subtotal	400,000
Term Loan
Debt Instrument [Line Items]
Total		$ 300,000
Term Loan \| Long-term Debt
Debt Instrument [Line Items]
Subtotal			300,000
LVMH Note
Debt Instrument [Line Items]
Debt discount	(40,000)
LVMH Note \| Long-term Debt
Debt Instrument [Line Items]
Subtotal	125,000		125,000
Unsecured Loan \| Long-term Debt
Debt Instrument [Line Items]
Subtotal	9,119		$ 2,860
Overdraft facilities \| Long-term Debt
Debt Instrument [Line Items]
Subtotal	$ 3,007