Notes Payable (Details) - USD ($) $ in Thousands		Oct. 31, 2018	Jan. 31, 2018	Oct. 31, 2017
Debt Instrument [Line Items]
Subtotal		$ 734,599	$ 437,003	$ 774,648
Less: Net debt issuance costs	[1]	(10,667)	(12,626)	(13,279)
Debt discount		(29,655)	(33,333)	(34,761)
Total		694,277	391,044	726,608
Term loan
Debt Instrument [Line Items]
Subtotal		300,000	300,000	300,000
Revolving credit facility
Debt Instrument [Line Items]
Subtotal		309,599	12,003	349,648
Less: Net debt issuance costs		(7,700)	(9,500)	(10,100)
Note issued to LVMH
Debt Instrument [Line Items]
Subtotal		125,000	$ 125,000	$ 125,000
Debt discount		$ (40,000)

[1] Does not include debt issuance costs, net of amortization, totaling $7.7 million, $10.1 million and $9.5 million as of October 31, 2018, October 31, 2017 and January 31, 2018, respectively, related to the revolving credit facility. These debt issuance costs have been deferred and are classified within prepaid expenses and other current assets in the accompanying Condensed Consolidated Balance Sheets in accordance with Accounting Standards Update (“ASU”) 201515.