CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Income Statement [Abstract]
Net sales	$ 633,552	$ 611,743
Cost of goods sold	397,488	377,216
Gross profit	236,064	234,527
Selling, general and administrative expenses	201,859	202,071
Depreciation and amortization	9,473	9,380
Gain on lease terminations	(829)
Operating profit	25,561	23,076
Other loss	(648)	(451)
Interest and financing charges, net	(10,320)	(9,620)
Income before income taxes	14,593	13,005
Income tax expense	2,550	3,120
Net income	$ 12,043	$ 9,885
Basic:
Net income per common share (in dollars per share)	$ 0.25	$ 0.20
Weighted average number of shares outstanding (in shares)	48,781	49,127
Diluted:
Net income per common share (in dollars per share)	$ 0.24	$ 0.20
Weighted average number of shares outstanding (in shares)	49,774	50,137
Net income	$ 12,043	$ 9,885
Other comprehensive income:
Foreign currency translation adjustments	(3,227)	3,436
Other comprehensive income (loss)	(3,227)	3,436
Comprehensive income	$ 8,816	$ 13,321