Goodwill and Intangible Assets, Net - Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jan. 01, 2017	Apr. 02, 2017	Apr. 03, 2016	Mar. 29, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		$ 23,653	$ 15,354	$ 6,573
Goodwill and acquisition-related intangible asset impairment				5,600
Goodwill, impairment loss	$ 200	161
Impairment charge in carrying amount of intangible asset	$ 300	1,300
Existing technology
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		12,625	6,052	4,534
Goodwill and acquisition-related intangible asset impairment				4,600
Trademark
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		775	726	916
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		6,486	2,253	1,123
Goodwill and acquisition-related intangible asset impairment				900
Order backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		1,286	4,504	0
Intellectual property licenses
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		$ 2,481	$ 1,819	0
Useful life (in years)		7 years
Non-compete agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill and acquisition-related intangible asset impairment				$ 100
Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life (in years)		1 year
Minimum | Intellectual property licenses
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life (in years)			3 years
Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life (in years)		7 years
Maximum | Intellectual property licenses
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life (in years)			7 years 6 months