Recently Issued Accounting Pronouncements - Schedule of Impact from ASU 2016-02 Adoption (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Mar. 31, 2019	Mar. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepaid assets	$ 28,454	$ 27,961	$ 30,794
Right-of-use lease assets	142,834	149,746
Lease liabilities	(13,751)	(14,899)
Other accrued liabilities	(16,886)	(5,268)	(16,339)
Non-current lease liabilities	(133,105)	(143,085)
Other long-term liabilities	0	(10,854)	(9,889)
Accumulated deficit	$ (213,274)	(221,465)	$ (222,430)
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepaid assets		(2,833)
Right-of-use lease assets		149,746
Lease liabilities		(14,899)
Other accrued liabilities		11,071
Non-current lease liabilities		(143,085)
Other long-term liabilities		(965)
Accumulated deficit		$ 965