EARNINGS PER SHARE ("EPS") (Schedule of Earnings Per Share Reconciliation) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Apr. 01, 2017	Apr. 02, 2016	Mar. 28, 2015
Basic EPS
Net (loss) income	$ (51,140)	$ 15,393	$ 19,825	$ (10,346)	$ (8,735)	$ (59,440)	$ 12,863	$ (267)	$ (26,268)	$ (55,579)	$ 16,897
Basic weighted average shares (in shares)									51,524	50,910	51,533
Basic (loss) income per share (in dollars per share)	$ (0.98)	$ 0.30	$ 0.39	$ (0.20)	$ (0.17)	$ (1.17)	$ 0.25	$ (0.01)	$ (0.51)	$ (1.09)	$ 0.33
Diluted EPS
Net (loss) income	$ (51,140)	$ 15,393	$ 19,825	$ (10,346)	$ (8,735)	$ (59,440)	$ 12,863	$ (267)	$ (26,268)	$ (55,579)	$ 16,897
Basic weighted average shares (in shares)									51,524	50,910	51,533
Net effect of common stock equivalents (in shares)									0	0	556
Diluted weighted average shares (in shares)									51,524	50,910	52,089
Diluted (loss) income per share (in dollars per share)	$ (0.98)	$ 0.30	$ 0.38	$ (0.20)	$ (0.17)	$ (1.17)	$ 0.25	$ (0.01)	$ (0.51)	$ (1.09)	$ 0.32
Stock options and restricted share units excluded from computation of weighted average shares outstanding (in shares)											1,600