CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) AND COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Income Statement [Abstract]
Net sales	$ 442,267	$ 473,884	$ 899,670	$ 906,849
Cost of goods sold	286,624	305,544	578,358	584,082
Gross profit	155,643	168,340	321,312	322,767
Selling, general and administrative expenses	153,168	141,483	306,273	278,516
Depreciation and amortization	7,672	5,914	14,865	11,601
Operating profit (loss)	(5,197)	20,943	174	32,650
Equity income in joint venture	348		617
Interest and financing charges, net	(1,056)	(1,177)	(2,298)	(2,153)
Income (loss) before income taxes	(5,905)	19,766	(1,507)	30,497
Income tax expense (benefit)	(4,612)	7,313	(2,985)	11,284
Net income (loss)	$ (1,293)	$ 12,453	$ 1,478	$ 19,213
Basic:
Net income (loss) per common share (in dollars per share)	$ (0.03)	$ 0.28	$ 0.03	$ 0.43
Weighted average number of shares outstanding (in shares)	45,667	45,073	45,601	45,020
Diluted:
Net income per common share (in dollars per share)	$ (0.03)	$ 0.27	$ 0.03	$ 0.42
Weighted average number of shares outstanding (in shares)	45,667	46,362	46,967	46,289
Net income (loss)	$ (1,293)	$ 12,453	$ 1,478	$ 19,213
Other comprehensive income (loss):
Foreign currency translation adjustments	(2,810)	1,117	3,222	(10,007)
Other comprehensive income (loss)	(2,810)	1,117	3,222	(10,007)
Comprehensive income (loss)	$ (4,103)	$ 13,570	$ 4,700	$ 9,206