SIGNIFICANT ACCOUNTING POLICIES - Reconciliation between Basic and Diluted Net Income per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended													12 Months Ended
	Jan. 31, 2019	[1]	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	[2],[3]	Oct. 31, 2017	[2]	Jul. 31, 2017	[2]	Apr. 30, 2017	[2]	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Accounting Policies [Abstract]
Net income	$ 24,080		$ 94,025	$ 10,077	$ 9,885	$ (542)		$ 81,625		$ (8,568)		$ (10,391)		$ 138,067	$ 62,124	$ 51,938
Basic net income per share:
Basic common shares														49,140	48,820	46,308
Basic net income (loss) per share (in dollars per share)	$ 0.49		$ 1.91	$ 0.20	$ 0.20	$ (0.01)		$ 1.67		$ (0.18)		$ (0.21)		$ 2.81	$ 1.27	$ 1.12
Diluted net income per share:
Basic common shares														49,140	48,820	46,308
Diluted restricted stock awards and stock options														1,134	930	1,086
Diluted common shares														50,274	49,750	47,394
Diluted net income per share (in dollars per share)	$ 0.48		$ 1.86	$ 0.20	$ 0.20	$ (0.01)		$ 1.65		$ (0.18)		$ (0.21)		$ 2.75	$ 1.25	$ 1.10

[1] During the fourth quarter of fiscal 2019, the Company recorded a $2.8 million impairment charge related to leasehold improvements and furniture and fixtures at certain of Wilsons, G.H. Bass and DKNY stores as a result of the performance at these stores.During

[2] Certain reclassifications have been made as a result of the Company’s reclassifying the impact of certain components of foreign currency gain (loss) from cost of goods sold and interest expense to other loss

[3] During the fourth quarter of fiscal 2018, the Company recorded (i) a $6.5 million impairment charge related to leasehold improvements and furniture and fixtures at certain of Wilsons, G.H. Bass and Vilebrequin stores as a result of the performance at these stores, (ii) a $0.7 million impairment charge with respect to furniture and fixtures located in certain customers’ stores and (iii) a $0.7 million write-off of goodwill related to the retail operations segment as a result of the performance of the retail operations segment.