Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 29, 2018	Apr. 30, 2017
Net sales	$ 130,429	$ 143,802
Cost of sales	58,960	58,887
Gross profit	71,469	84,915
Operating costs and expenses:
Selling, general and administrative	41,406	34,015
Product development and engineering	26,199	25,983
Intangible amortization	6,961	6,286
Loss on disposition of business operations	0	375
Total operating costs and expenses	74,566	66,659
Operating (loss) income	(3,097)	18,256
Interest expense, net	(2,190)	(2,046)
Non-operating income (expense), net	190	(632)
(Loss) income before taxes and equity in net losses of equity method investments	(5,097)	15,578
Provision for taxes	(17,510)	3,757
Net income before equity in net losses of equity method investments	12,413	11,821
Equity in net losses of equity method investments	(31)	0
Net income	$ 12,382	$ 11,821
Earnings per share:
Basic (in dollars per share)	$ 0.19	$ 0.18
Diluted (in dollars per share)	$ 0.18	$ 0.18
Weighted average number of shares used in computing earnings per share:
Basic (in shares)	66,324	65,839
Diluted (in shares)	68,195	67,376