Segments - Information regarding reportable segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 30, 2014		Apr. 30, 2013
Segment Reporting Information [Line Items]
Net sales	$ 366,192		$ 272,615
Cost of goods sold	236,015		180,223
Gross profit	130,177		92,392
Selling, general and administrative	122,441		85,828
Depreciation and amortization	4,227		3,121
Operating profit (loss)	3,509		3,443
Operating Segments | Licensed
Segment Reporting Information [Line Items]
Net sales	216,715		180,507
Cost of goods sold	155,791		130,302
Gross profit	60,924		50,205
Selling, general and administrative	49,478		46,257
Depreciation and amortization	854		485
Operating profit (loss)	10,592		3,463
Operating Segments | Non-Licensed
Segment Reporting Information [Line Items]
Net sales	67,749		60,689
Cost of goods sold	43,462		41,495
Gross profit	24,287		19,194
Selling, general and administrative	21,220		19,298
Depreciation and amortization	1,978		1,940
Operating profit (loss)	1,089		(2,044)
Operating Segments | Retail
Segment Reporting Information [Line Items]
Net sales	95,633		45,250
Cost of goods sold	50,667		22,211
Gross profit	44,966		23,039
Selling, general and administrative	51,743		20,335
Depreciation and amortization	1,395		696
Operating profit (loss)	(8,172)		2,008
Elimination
Segment Reporting Information [Line Items]
Net sales	(13,905)	[1]	(13,831)	[1]
Cost of goods sold	(13,905)	[1]	(13,785)	[1]
Gross profit		[1]	(46)	[1]
Selling, general and administrative		[1]	(62)	[1]
Depreciation and amortization		[1]		[1]
Operating profit (loss)		[1]	$ 16	[1]

[1] Represents intersegment sales to the Company's retail operations.