Earnings Per Share - Computation of Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 29, 2018	Dec. 30, 2017
Numerator:
Net income (loss)	$ 10,513	$ 5,393	$ (67,365)	$ 18,064
Less: Undistributed earnings allocated to participating securities	86	337		1,142
Net income (loss) attributable to the Company's common shareholders	$ 10,427	$ 5,056	$ (67,365)	$ 16,922
Denominator:
Average common shares outstanding	56,249	44,525	52,595	44,480
Basic net income (loss) per share	$ 0.19	$ 0.11	$ (1.28)	$ 0.38
Diluted net income (loss) per share	$ 0.19	$ 0.11	$ (1.28)	$ 0.38