EARNINGS PER SHARE ("EPS") (Schedule of Earnings Per Share Reconciliation) (Details) (USD $) In Thousands, except 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
Basic EPS
Net income	$ 12,562	$ 9,904	$ 6,547	$ 9,787	$ 17,805	$ 18,254	$ 13,880	$ 16,947	$ 38,800	$ 66,886	$ 79,980
Basic weighted average shares (in shares)									51,349,000	50,727,000	50,154,000
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 EPS
Net income	$ 12,562	$ 9,904	$ 6,547	$ 9,787	$ 17,805	$ 18,254	$ 13,880	$ 16,947	$ 38,800	$ 66,886	$ 79,980
Basic weighted average shares (in shares)									51,349,000	50,727,000	50,154,000
Net effect of common stock equivalents (in shares)									910,000	863,000	1,038,000
Diluted weighted average shares (in shares)									52,259,000	51,590,000	51,192,000
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
Stock options excluded from computation of weighted average shares outstanding (in shares)									500,000	1,400,000	2,400,000