Notes Payable (Details) - USD ($) $ in Thousands		Oct. 31, 2017	Jan. 31, 2017	Oct. 31, 2016
Debt Instrument [Line Items]
Subtotal		$ 774,648	$ 516,121	$ 91,334
Less: Net debt issuance costs and debt discount	[1]	(48,040)	(54,365)	0
Total		726,608	461,756	91,334
Prior revolving credit facility
Debt Instrument [Line Items]
Subtotal		0	0	91,334
Term loan
Debt Instrument [Line Items]
Subtotal		300,000	300,000	0
New revolving credit facility
Debt Instrument [Line Items]
Subtotal		349,648	91,121	0
Less: Net debt issuance costs and debt discount		(10,100)	(11,900)
Note issued to LVMH
Debt Instrument [Line Items]
Subtotal		$ 125,000	$ 125,000	$ 0

[1] This table does not include the debt issuance costs, net of amortization, totaling $10.1 million and $11.9 million as of October 31, 2017 and January 31, 2017, respectively, related to the new revolving credit facility. The debt issuance costs have been deferred and are classified in prepaid expense in the accompanying Consolidated Condensed Balance Sheet as permitted under ASU 2015-15.