CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Income Statement [Abstract]
Net sales	$ 643,892	$ 624,698	$ 1,277,444	$ 1,236,441
Cost of goods sold	412,123	393,154	809,611	770,370
Gross profit	231,769	231,544	467,833	466,071
Selling, general and administrative expenses	196,448	198,860	398,307	400,931
Depreciation and amortization	9,789	9,455	19,262	18,835
Gain on lease terminations	(1,393)		(2,222)
Operating profit	26,925	23,229	52,486	46,305
Other loss	(751)	(28)	(1,399)	(479)
Interest and financing charges, net	(10,785)	(10,210)	(21,105)	(19,830)
Income before income taxes	15,389	12,991	29,982	25,996
Income tax expense	4,270	2,914	6,820	6,034
Net income	$ 11,119	$ 10,077	$ 23,162	$ 19,962
Basic:
Net income per common share (in dollars per share)	$ 0.23	$ 0.20	$ 0.48	$ 0.41
Weighted average number of shares outstanding (in shares)	48,450	49,169	48,619	49,148
Diluted:
Net income per common share (in dollars per share)	$ 0.23	$ 0.20	$ 0.47	$ 0.40
Weighted average number of shares outstanding (in shares)	49,116	50,415	49,436	50,272
Net income	$ 11,119	$ 10,077	$ 23,162	$ 19,962
Other comprehensive income:
Foreign currency translation adjustments	1,573	(11,501)	(1,654)	(8,065)
Other comprehensive income (loss)	1,573	(11,501)	(1,654)	(8,065)
Comprehensive income	$ 12,692	$ (1,424)	$ 21,508	$ 11,897