COMPUTATION OF EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 28, 2020	Mar. 30, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Net loss	$ (677,918)	$ (78,483)	$ (25,910)	$ (44,871)	$ (21,589)	$ (41,734)	$ (86,709)	$ 14,471	$ (827,182)	$ (135,561)	$ (869)
Earnings Per Share, Basic and Diluted
Weighted average common shares-basic									39,658	37,569	32,345
Weighted average common shares-diluted									39,658	37,569	32,345
Basic (in dollars per share)	$ (16.94)	$ (1.97)	$ (0.65)	$ (1.14)	$ (0.55)	$ (1.06)	$ (2.21)	$ 0.43	$ (20.86)	$ (3.61)	$ (0.03)
Diluted (in dollars per share)	$ (16.94)	$ (1.97)	$ (0.65)	$ (1.14)	$ (0.55)	$ (1.06)	$ (2.21)	$ 0.42	$ (20.86)	$ (3.61)	$ (0.03)
Potentially dilutive securities excluded from diluted loss per share because their effect is anti-dilutive									1,740	616	543