Convertible Senior Notes, Warrants and Hedges - Interest Expense (Details) - Convertible debt - 0.875% Convertible Senior Notes Due 2022 - USD ($) $ in Thousands	12 Months Ended
Apr. 02, 2017	Apr. 03, 2016
Debt Instrument [Line Items]
Contractual interest expense	$ 3,307	$ 1,363
Amortization of debt issuance costs	1,081	450
Amortization of debt discount	12,239	4,904
Interest Expense	$ 16,627	$ 6,717

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 28
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Amount of amortization expense attributable to debt issuance costs.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.

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