Segments - Information regarding reportable segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Segment Reporting Information [Line Items]
Net sales	$ 297,212	$ 643,892	$ 702,343	$ 1,277,444
Cost of goods sold	162,519	412,123	443,249	809,611
Gross profit	134,693	231,769	259,094	467,833
Selling, general and administrative expenses	122,102	196,448	276,722	398,307
Depreciation and amortization	9,691	9,789	19,558	19,262
Asset impairments, net of gain on lease modifications	14,302	(1,393)	17,489	(2,222)
Operating profit (loss)	(11,402)	26,925	(54,675)	52,486
Operating Segments | Wholesale
Segment Reporting Information [Line Items]
Net sales	266,809	588,601	645,681	1,159,240
Cost of goods sold	143,340	395,728	409,981	767,308
Gross profit	123,469	192,873	235,700	391,932
Selling, general and administrative expenses	76,727	141,540	189,327	288,797
Depreciation and amortization	8,392	7,763	16,683	15,284
Asset impairments, net of gain on lease modifications	612		608
Operating profit (loss)	37,738	43,570	29,082	87,851
Operating Segments | Retail
Segment Reporting Information [Line Items]
Net sales	34,507	83,706	68,415	165,610
Cost of goods sold	23,283	44,810	45,021	89,709
Gross profit	11,224	38,896	23,394	75,901
Selling, general and administrative expenses	45,375	54,908	87,395	109,510
Depreciation and amortization	1,299	2,026	2,875	3,978
Asset impairments, net of gain on lease modifications	13,690	(1,393)	16,881	(2,222)
Operating profit (loss)	(49,140)	(16,645)	(83,757)	(35,365)
Elimination
Segment Reporting Information [Line Items]
Net sales	(4,104)	(28,415)	(11,753)	(47,406)
Cost of goods sold	$ (4,104)	$ (28,415)	$ (11,753)	$ (47,406)