SUMMARY OF QUARTERLY DATA (UNAUDITED) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 01, 2011	Jul. 02, 2011	Mar. 30, 2013	Mar. 31, 2012	Apr. 02, 2011
Quarterly Financial Data [Abstract]
Net revenues	$ 249,942	$ 247,395	$ 218,178	$ 176,475	$ 186,670	$ 191,160	$ 179,445	$ 170,569	$ 891,990	$ 727,844	$ 676,694
Gross profit	123,141	113,115	101,762	90,113	94,612	95,931	89,949	88,748	428,131	369,240	355,209
Operating income	17,710	15,747	9,901	13,079	20,960	25,324	18,566	23,908	56,437	88,758	110,548
Net income	$ 12,562	$ 9,904	$ 6,547	$ 9,787	$ 17,805	$ 18,254	$ 13,880	$ 16,947	$ 38,800	$ 66,886	$ 79,980
Per share data:
Basic income per share (in dollars per share)	$ 0.24	$ 0.19	$ 0.13	$ 0.19	$ 0.35	$ 0.36	$ 0.27	$ 0.33	$ 0.76	$ 1.32	$ 1.59
Diluted income per share (in dollars per share)	$ 0.24	$ 0.19	$ 0.13	$ 0.19	$ 0.35	$ 0.36	$ 0.27	$ 0.32	$ 0.74	$ 1.30	$ 1.56