Earnings (Loss) Per Share - Reconciliation of Weighted Average Shares Outstanding Used in Calculation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss)	$ 16,835	$ 4,260	$ 47,978	$ 7,162
Weighted average number of shares - basic	34,606	33,861	34,529	33,647
Weighted Average Number Diluted Shares Outstanding Adjustment	1,353	1,013	1,387	1,069
Weighted Average Number of Shares Outstanding, Diluted	35,959	34,874	35,916	34,716
Net (loss) income per share - basic	$ 0.49	$ 0.13	$ 1.39	$ 0.21
Net (loss) income per share - diluted	$ 0.47	$ 0.12	$ 1.34	$ 0.21