CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2020	Oct. 31, 2019
Income Statement [Abstract]
Net sales	$ 826,561	$ 1,128,403	$ 1,528,904	$ 2,405,847
Cost of goods sold	528,806	729,384	972,055	1,538,995
Gross profit	297,755	399,019	556,849	866,852
Selling, general and administrative expenses	177,625	246,580	454,347	644,887
Depreciation and amortization	10,187	9,701	29,745	28,963
Asset impairments, net of gain on lease modifications	(117)	(124)	17,372	(2,346)
Operating profit (loss)	110,060	142,862	55,385	195,348
Other income (loss)	225	677	112	(722)
Interest and financing charges, net	(18,681)	(12,518)	(38,237)	(33,623)
Income (loss) before income taxes	91,604	131,021	17,260	161,003
Income tax expense (benefit)	28,430	35,634	8,357	42,454
Net income (loss)	$ 63,174	$ 95,387	$ 8,903	$ 118,549
Basic:
Net income (loss) per common share (in dollar per shares)	$ 1.31	$ 2.00	$ 0.18	$ 2.45
Weighted average number of shares outstanding (in shares)	48,359	47,768	48,201	48,333
Diluted:
Net income (loss) per common share (in dollars per share)	$ 1.29	$ 1.97	$ 0.18	$ 2.42
Weighted average number of shares outstanding (in shares)	48,809	48,356	48,589	49,056
Net income (loss)	$ 63,174	$ 95,387	$ 8,903	$ 118,549
Other comprehensive income:
Foreign currency translation adjustments	7,066	(6,212)	6,814	(7,866)
Other comprehensive income (loss)	7,066	(6,212)	6,814	(7,866)
Comprehensive income (loss)	$ 70,240	$ 89,175	$ 15,717	$ 110,683