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NOTES PAYABLE AND OTHER LIABILITIES - Long-term debt (Details) - USD ($) $ in Thousands	Jan. 31, 2020	Jan. 31, 2019	Dec. 01, 2016
Debt Instrument [Line Items]
Debt issuance costs	$ 4,600	$ 7,100
Long-term Debt
Debt Instrument [Line Items]
Subtotal	427,860	425,000
Less: Net debt issuance costs (1)	(7,402)	(10,014)
Debt discount	(22,991)	(28,382)
Current portion of long-term debt	(673)
Total	396,794	386,604
Senior secured term loan facility (the "Term Loan")
Debt Instrument [Line Items]
Subtotal			$ 300,000
Debt issuance costs	18,300
Senior secured term loan facility (the "Term Loan") \| Long-term Debt
Debt Instrument [Line Items]
Subtotal	300,000	300,000
Revolving credit facility
Debt Instrument [Line Items]
Debt issuance costs	12,400
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	$ 2,860