(Loss) Earnings Per Share - Reconciliation of Weighted Average Shares Outstanding Used in Calculation of Basic and Diluted Earnings Per Share (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
Earnings Per Share [Abstract]
Net income (loss)	$ (65,751)	$ 6,768	$ 5,211	$ (944)	$ (7,665)	$ (1,881)	$ 8,537	$ 5,913	$ (54,716)	$ 4,904	$ 7,934
Weighted average number of shares - basic									29,357	28,749	28,045
Incremental diluted shares									0	712	563
Weighted average shares used for diluted earnings per share									29,357	29,461	28,608
Net (loss) income per share - basic	$ (2.23)	$ 0.23	$ 0.18	$ (0.03)	$ (0.26)	$ (0.07)	$ 0.30	$ 0.21	$ (1.86)	$ 0.17	$ 0.28
Net (loss) income per share - diluted	$ (2.23)	$ 0.23	$ 0.17	$ (0.03)	$ (0.26)	$ (0.07)	$ 0.29	$ 0.20	$ (1.86)	$ 0.17	$ 0.28