CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Net revenues	$ 179,445	$ 166,833	$ 350,014	$ 329,872
Cost of goods sold	89,496	79,078	171,316	155,655
Gross profit	89,949	87,755	178,698	174,217
Operating expenses:
Research and development	10,350	7,954	18,959	15,875
Selling, general and administrative	62,613	52,790	118,844	107,144
Contingent consideration income	(1,580)	(1,894)	(1,580)	(1,894)
Total operating expenses	71,383	58,850	136,223	121,125
Operating income	18,566	28,905	42,475	53,092
Other income, net	445	254	230	442
Income before provision for income taxes	19,011	29,159	42,705	53,534
Provision for income taxes	5,131	7,821	11,877	14,277
Net income	$ 13,880	$ 21,338	$ 30,828	$ 39,257
Basic income per common share
Net income	$ 0.55	$ 0.86	$ 1.21	$ 1.58
Income per common share assuming dilution
Net income	$ 0.54	$ 0.85	$ 1.18	$ 1.54
Weighted average shares outstanding
Basic	25,418	24,686	25,575	24,913
Diluted	25,843	25,228	26,029	25,459