Acquired Intangible Assets - Components of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Gross intangible assets	$ 27,935	$ 28,558
Less accumulated amortization	(22,766)	(21,994)
Total acquired intangible assets	5,169	6,564
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross intangible assets	$ 18,646	18,646
Weighted average useful life	7 years 5 months 16 days
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross intangible assets	$ 3,914	3,914
Weighted average useful life	5 years 3 months 5 days
Customer backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Gross intangible assets	$ 1,270	1,270
Weighted average useful life	1 year
Trade name and trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Gross intangible assets	$ 793	793
Weighted average useful life	3 years 9 months 30 days
Fair value of below-market lease
Acquired Finite-Lived Intangible Assets [Line Items]
Below Market Lease, Gross	$ 310	310
Weighted average useful life	3 years 9 months 18 days
Change of control agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Gross intangible assets	$ 160	160
Weighted average useful life	2 years 1 month 15 days
Patents
Acquired Finite-Lived Intangible Assets [Line Items]
Gross intangible assets	$ 2,842	$ 3,465
Weighted average useful life	12 years 8 months 1 day